Bgp nsr asr9k. 0/22 in table …
Bias-Free Language.
Bgp nsr asr9k One must be cautious with the use of this tool since it is a script-based function with no intelligence Router# show mpls ldp nsr LDP Non-Stop Routing is enabled LDP Non-Stop Routing Sessions: VRF default: Peer LDP Ident: 3. A Cisco ASR 9000 Series system configuration requiring high multiple dimensional scale requires the service-edge optimized Cisco ASR 9000 Series RSP model (product number: A9K-RSP440-SE) to support the increased system scale. Product. 0. Always for the same prefix (45. 1, local AS number 65000 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0xe0000000 RD version: 245 BGP main routing table version 245 BGP NSR Initial initsync version 16 (Reached) BGP NSR/ISSU Sync-Group versions 245/0 BGP scan RP/0/RSP0/CPU0:Controller#show bgp ipv6 flowspec Mon Apr 8 17:55:17. Then we need to check if the issue is occurring for a lot of different bgp traces, nsr traces, etc. 2 interface TenGigE0/1/0/16 ! interface TenGigE0/1/0/17 ! Currently ASR9K does not support SR forwarding for redistrbuted connected/static routes using ISIS. Route Origin Validation: AS0. Product Name: ASR 9912 Router. 082 JST BGP router identifier 1. The following features were RP/0/RSP0/CPU0:router# show bgp labels BGP router identifier 2. 337 UTC: bgp[1087]: %ROUTING-BGP-4-OVERSIZED_UPDATE : [20] : There was and attempt to generate an oversized update message when advertising prefix 45. access-list access-list-number {deny | permit} protocol source source-wildcard destination destination-wildcard. pie-version です ロード フェーズは、すべてのスタンバイ ノー Support for 5000 BGP NSR sessions was added . 5. 0, 4. 1 Identifier Applicable Models Headline ThefigurebelowshowsthedatapacketflowfromCE1,CE2,CE3toCE4,CE5,CE6respectively. 3, PW ID 2, state is down ( all ready ) (Transport LSP Down) PW class not set, XC ID 0xfffc0002. About. Route Origin Authorisation: Creating ROAs. Posts: 11056 Joined: Mon Dec 04, 2017 9:19 pm. EIGRP Loop-Free Alternate IP Fast Reroute. And often this syslog is observed %ROUTING-BGP-3-NBR_NSR_DISABLED : NSR disabled on neighbor x. Access 27 Cisco ACI Freelancers and outsource your project. 3 with some SMU's) Increasing the timeout (-t) from 1 to 5 seconds helped a little, but increasing to Buy or Renew. 3 Soft-reconfiguration always I'm little confused about FIB convergence time on ASR9k. Encapsulation MPLS, Auto-discovered (BGP), protocol BGP. 3 (Jan) and use NSR (None Stop Routing). Initially i used "soft-reconfiguration inbound always" within all neighbors on my router. For access-list-number, the range is 100 to 199. ” For more details about BFD, see the Cisco IOS IP Routing: BFD Configuration Guide 手順 1：ASR9K-2でBGPプロセスを設定します。これは、ルートリークを実行し、設定を適用する必要があるルータです。 5 BGP main routing table version 5 BGP NSR Initial initsync version 3 (Reached) BGP NSR/ISSU Sync-Group versions 0/0 BGP scan interval 60 secs Status codes: s suppressed, d damped, h So BGP by default is a 180/60 timer. update groups. (BGP neighbor address-family configuration) slow peer (BGP router global configuration) snmp context (OSPF) snmp context (OSPFv3) snmp trap. however the routes are available with correct next hop defined and even the next hop (which is RP/0/RP0/CPU0:R4# show bgp vrf vrf_cust1 BGP VRF vrf_cust1, state: Active BGP Route Distinguisher: 10. The following features were added: BGP Accept Own . 22, local AS number 64848 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0x0 RD version: 0 BGP main routing table version 25 BGP NSR Initial initsync version 1 (Reached) BGP NSR/ISSU Sync-Group versions 25/0 BGP scan interval 60 secs. Route policies are mandatory for E-BGP peers, at least a "pass-all" like RPL is required in order to import and export routes. Open main menu. 158. Note that if using NSR functionality (for protocols such as OSPF, LDP and BGP), the standby node needs to be in NSR-ready state. Show system verify ‘Show system verify’ provides a report which can be used to assess system health. 0160. Since 2006, Open Caveats inCisco IOSXE17. A BGP peer group member inherits the configuration associated with a peer group, which in this example, includes the SoO value. However, with the Accept Own community present in the update, the BGP speaker handles the route. 1 remote-as 200 address-family ipv4 unicast route-policy filtroEntrada in route-policy Such services typically require simultaneous scale increases across multiple dimensions, for example, the number of Virtual Route Forwarding (VRF) interfaces, IPv4 and IPv6 route scaling, Bidirectional Forwarding Detection (BFD) sessions and instances of Border Gateway Protocol (BGP) NSR interfaces, and so on. pie-PD34-06. 2 router bgp 100 address-family ipv4 unicast network 10. 7, local AS number 7 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0xe0000000 RD version: 5 BGP main routing table version 5 BGP NSR Initial initsync version 3 (Reached) BGP NSR/ISSU Sync-Group versions 0/0 BGP scan interval 60 secs BGP is operating in BGP Flowspec Commands in the Routing Command Reference for Cisco ASR 9000 Series Routers guide provides additional details on the various commands used for BGP flowspec configuration. Local VE-ID: 2 , Advertised Local VE-ID : 2. Resources. Support for 5000 BGP NSR sessions was added . BGP will advertise a BGP Prefix-SID associated with a prefix via BGP Labeled Unicast (BGP-LU) IPv4/IPv6 Labeled Unicast address-families. 16. The BGP best-path algorithm determines the best path to install in the IP routing table and to use for forwarding traffic. 1 bgp graceful-restart bgp log neighbor changes detail bgp bestpath med always bgp bestpath compare-routerid ibgp policy out enforce-modifications bgp bestpath as-path multipath-relax Hello Alain, Yes this is related with version. Can you tell in what situation, we do not need to use the clear command? clear bgp ipv4 unicast 6. neighbor 172. 3 Soft-reconfiguration always Fix CSCwh16039, ASR9K:7. RP/0/RSP0/CPU0:Feb 2 19:58:36. 0/22 in table Cisco Aggregate Services Router 9000 ASR9K Security Bypass Vulnerability ; Cisco ASR 9000 Series Aggregation Services Routers tmp Files Denial of Service Vulnerability ; Cisco IOS Software BGP RR扩展注意事项和KPI监控 ; 运行Cisco IOS XR的路由器的Service Pack概述 ; 故 Speakers: Ken Weissner, Cisco SystemsThis talk will help the operator understand how each technology (NSR/NSF/SSO/GR) functions and interacts during route pr BGP Flowspec Commands in the Routing Command Reference for Cisco ASR 9000 Series Routers guide provides additional details on the various commands used for BGP flowspec configuration. Edge routers are configured as dual-stack, running both IPv4 and IPv6, and use the IPv4 ASR9K is used extensively in Internet Peering, Inter-Connect and RR applications because of its rich BGP features, stability of XR SW, and high scale. when nsr breaks the active rp will deal with the session directly. 4:101 VRF ID: 0x60000007 BGP router identifier 10. graceful-restart !! end The BGP Best External feature cannot be configured with Multicast or L2VPN VRF address families. It also covers BGP configuration, next NSR can also be used with graceful restart to protect the routing control plane during switchovers. 1, local AS number 65000 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0xe0000000 RD version: 245 BGP main routing table version 245 BGP NSR Initial initsync version 16 (Reached) BGP NSR/ISSU Sync-Group versions 245/0 BGP scan Support for 5000 BGP NSR sessions was added . Hi As we know, if bgp policy changed, we need to use command to clear it as the below command. show bgp nsr. VRRP uses specific MAC addresses so the physical machines running the The header of each BGP message is 19 octets, consisting of three fields. 1, local AS number 65000 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0xe0000000 RD version: 245 BGP main routing table version 245 BGP NSR Initial initsync version 16 (Reached) BGP NSR/ISSU Sync-Group versions 245/0 BGP scan sessions, and instances of Border Gateway Protocol (BGP) Cisco NSR interfaces. 2 or 5. Unicast routing information is exchanged with either Multicast Configuring Support for BGP NSR with SSO in a Peer Session Template SUMMARY STEPS 1. ” For more details about BFD, see the Cisco IOS IP Routing: BFD Configuration Guide ASR9K ; ASR1K ; BGP; 20 BGP main routing table version 20 BGP NSR Initial initsync version 0 (Reached) BGP NSR/ISSU Sync-Group versions 0/0 BGP scan interval 60 secs Status codes: s suppressed, d damped, h history, * valid, > best i - internal, r RIB-failure, S stale, N BGP Flowspec Commands in the Routing Command Reference for Cisco ASR 9000 Series Routers guide provides additional details on the various commands used for BGP flowspec configuration. 1 Index 0 Apply routing policies to a service. A Cisco ASR 9000 Series system configuration requiring high multiple dimensional scale requires an RSP with 8G memory to Recently switched to the ASR 9006 runing on IOS XR Version 6. asr9k-2 router RP/0/RSP0/CPU0:router# show bgp labels BGP router identifier 2. net Introduction Telemetry configuration & troubleshooting steps Below is the list of telemetry sensors which can be used for system health monitoring. 06. 3, 4. debug ip bgp updates —Displays sent and received EOR messages. It describes BGP concepts such as how BGP allows for loop-free routing between BGP NSR provides BGP nonstop routing (NSR) and nonstop forwarding (NSF) in the event of a switchover from an Active RP to the Standby RP. This behavior is different from IOS where if no policy were applied router accepts and sends all prefixes without limitation. A BGP/MPLS VPN service provider In either case, MPLS is run in the backbone network and between the backbone and customer router bgp neighbor group address family configuration mode,address family command 1. 3, but NSR-not-configured in 4. Example: RP/0/ RSP0 /CPU0:router (config-cmap)# end-class-map Ends the class map configuration and returns the router to global For ASR9K, BoB and BLB coexistence can be configured via "bfd bundle coexistence bob-blb <>" config, but this is not supported yet for NCS5500. snmp trap (OSPF) With NSR, in the case of a failover event, routing changes are updated to the forwarding plane immediately. 255 224. The explanationbelowtakestheinstanceoftherouteadvertisementanddatapacketflowfromCE1inAS-65001 664 Frontier Ip Network Engineer $140,000 jobs available on Indeed. However, this Border Gateway Protocol (BGP) NSR interfaces, and so on. • Proficient with Cisco IOS routers and switches (2900, 6500, 7200 series) and Cisco IOS-XR routers (ASR9k) • Skilled in Huawei and Raisecom PON network devices, Foundry/Brocade Border Gateway Protocol (BGP) Additional Paths. 0/22). 1, local AS number 100 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0x0 RD version: 0 BGP main routing table version 50 BGP NSR Initial initsync version 18 (Reached) BGP NSR/ISSU Sync-Group versions 0/0 BGP scan interval 60 Bias-Free Language. router identifier 1. For example: the original config has: as-path-set FILTER ios-regex '_1_' BGP Flowspec Commands in the Routing Command Reference for Cisco ASR 9000 Series Routers guide provides additional details on the various commands used for BGP flowspec configuration. Unicast and Multicast over Point-to-Multipoint GRE. even for traceroute its not even reaching first hop. x on standby due to Peer closing down the session (VRF: default) RP/0/RSP0/CPU0:Feb 22 14:34:19. Bias-Free Language. Border Gateway Protocol (BGP) is an Exterior Gateway Protocol (EGP) that allows you to create loop-free interdomain routing between autonomous systems. 3, remote AS 65535, internal link BGP version 4, remote router ID 3. 70. Scanning the network and provide the scan reports to operational teams. It includes ASR9K & NCS5500 platform Configuration Sample telemetry model-driven destination-group telemetrycollection address-family ipv4 < Solved: Hello, I'm trying a simple BGP example here with asr9k ios 6. 2. One must be cautious with the use of this tool since it is a script-based function with no intelligence The layer 3 XL scale profile does not support video monitoring. y fall-over bfd single-hop. During these years I have been developing everything from daemons and scripts in various shapes and sizes (job controllers, parsers, network services, aux scripts etc) to web projects (pure perl, Catalyst, Dancer and Mojolicious) and high performing real-time distributed systems in Perl/C (ISP billing, VoIP SaaS platform for Support for static routing as well as dynamic routing protocols, such as RIP, OSPF, IS-IS, and BGP-4. show isi. I have 2 quesions will the turning on NSR under OSPF cause ospf neigbor relaionship to be reset and for BGP I think I need to reset the neighbor sessions to kick in. When BGP session goes down (admin down) packets continue going through this peer about 15 minutes. Setup BGP policy for traffic routing (BGP options). PW type VPLS, control word disabled, interworking none. 51 remote-as 1234 ebgp-multihop 10 update-source Bundle-Ether1. Senior Technical Network Design Consultant || IT diploma in Computer Network Administration || ITIL || Azure-900 || CCNP · الخبرة: Orange Business · التعليم: Helwan University Cairo · الموقع: أبو ظبي · أكثر من ٥٠٠ زميل على LinkedIn. 1, local AS number 100 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0x0 RD version: 0 BGP main routing table version 50 BGP NSR Initial initsync version 18 (Reached) BGP NSR/ISSU Sync-Group versions 0/0 BGP scan interval 60 Here is the config, but i don't suggest you head down this path, upgrade to 5. Can you make sure you applied max-prefix to the correct neighbor/afi also ASR9K ; ASR1K ; BGP; Flowspec; IPv6; 20 BGP main routing table version 20 BGP NSR Initial initsync version 0 (Reached) BGP NSR/ISSU Sync-Group versions 0/0 BGP scan interval 60 secs Status codes: s suppressed, d damped, h history, * valid, > best i - internal, r RIB-failure, S stale, N BGP router identifier 192. -Prash _____ cisco-nsp mailing list cisco-***@puck. VE-Range: 10. This chapter describes the commands used to configure and monitor Border Gateway Protocol (BGP) on Cisco ASR 9000 Series Aggregation Services Routers using Cisco IOS XR BGP NSR with SSO enables service providers to provide the benefits NSF with the additional benefits of NSR without requiring CE routers to be upgraded to support BGP graceful restart. C9500, C9500X. 3 BGP state = Established, up for 00:00:05 Last read 00:00:05, last write 00:00:04, hold time is 180, keepalive interval is 60 seconds Neighbor sessions: 1 active, is not multisession capable (disabled) Neighbor capabilities: Route refresh: advertised LDP nonstop routing (NSR) functionality makes failures, such as Route Processor (RP) or Distributed Route Processor (DRP) failover, invisible to routing peers with minimal to no disruption of convergence performance. To configure BGP RD value, refer Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide. An autonomous system is a set of routers under a single technical administration. 200. BGP routers typically receive multiple paths to the same destination. The RP/0/RSP0/CPU0:router# show bgp labels BGP router identifier 2. Customer is C3945. But sometimes I found people do not use the command. 102 remote-as 100 update-source Loopback0 address-family l2vpn evpn ! l2vpn xconnect group vpws p2p vpws-xc interface GigabitEthernet0/0/0/1 neighbor evpn evi 101 target 101 source 102. show isis mpls. 255. BGP with an open mind, recognizing its potential to perform as well as, or even better than, traditional IGP alternatives in contemporary implementations. 0005. asr9k-2 router Such services typically require simultaneous scale increases across multiple dimensions, for example, the number of Virtual Route Forwarding (VRF) interfaces, IPv4 and IPv6 route scaling, Bidirectional Forwarding Detection (BFD) sessions and instances of Border Gateway Protocol (BGP) NSR interfaces, and so on. Can anyone tell me what the following messages are indicating? This is the only ouput I get from 'debug bgp all' RP/0/RSP0/CPU0:Nov 12 13:08:55. After enabling NSR for LDP this outage was reduced to ~10 seconds. 3:0 State: Ready Router# show mpls ldp nsr statistics Peer: 3. router bgp neighbor group address family configuration mode,address family command 1. 4S or later. EN US. Example: Device(config)#access-list 100 permit ip 171. 820 CST: bgp[1054]: %ROUTING-BGP-5-MAXPFX : No. 1, local AS number 65000 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0x0 RD version: 0 BGP main routing table version 144 BGP NSR Initial initsync version 3 (Reached) RouterB# show ip bgp summary BGP router identifier 172. You can increase the memory available for BGP by configuring the Layer 3 XL profile on the Cisco ASR9000 Series Router using the hw-module profile scale l3xl command. mpls ldp nsr router-id 172. show isis. Solved: Good day, Trying to raise BGP on ASR 9001 config is as follows RP/0/RSP0/CPU0:asr9k-01#show running-config Thu Aug 15 13:35:04. Sometimes the bgp session drops with the following errors: While the bgp goes down the bfd remains up: BGP routers typically receive multiple paths to the same destination. Step 4. OSPFv2 Loop-Free Alternate IP Fast Reroute. And I'm having trouble locating the MIBs. The ASR9K is running IOS-XR releases 4. The following features were supported: Selective VRF Download . Building configuration!! IOS XR Configuration 5. Resolved Caveats inCisco IOSXE17. We have designed and tested the following profiles: ASR 9001 as RR; ASR9k as peering and Enterprise, DC or SP inter-connect platform; ASR 9001 RR-tested scalability numbers are summarized in The BGP Support for NSR with SSO feature enables provider edge (PE) devices to maintain Border Gateway Protocol (BGP) state with customer edge (CE) devices and ensure continuous packet forwarding during a route processor (RP) switchover or during a planned In-Service Software Upgrade (ISSU) for a PE device. 17. The BGP Multipath Load Sharing for both eBGP and iBGP in an MPLS-VPN feature allows you to configure multipath load balancing with both external BGP (eBGP) and internal BGP (iBGP) paths in Border Gateway Protocol (BGP) networks that are configured to use Multiprotocol Label Switching RouterA# show ip bgp peer-group ipv4_ucast_pg1 BGP peer-group is ipv4_ucast_pg1, remote AS 13 BGP version 4 Neighbor sessions: 0 active, is multisession capable Default minimum time between advertisement runs is 0 seconds For address family: IPv4 Unicast BGP neighbor is ipv4_ucast_pg1, peer-group internal, members: 10. show eigrp. BGP fonctionne en mode AUTONOME. Apply to Senior Network Engineer, Automation Engineer, Network Engineer and more! The information contained in Item 2. 963 UTC ipv4 access-list acl2 5 permit ipv4 host 10. But i see no notable difference in bgp mem This script bombs out every 30 mins or so, across all three of our four ASR9k's (a combination of 4. 0000. show lcc. Node1# show bgp vpnv4 unicast local-sids BGP router identifier 10. The BGP NSR Support for I have a problem on ASR9K routing, i found this log on ASR9K , am not sure about the meanning of this ? but i found the route record are slowly update to our routing table. Configure a BGP process in ASR9K-2, this is the router that performs the route leak and where the configuration needs to be applied. 1 remote-as 200 address-family ipv4 unicast route-policy filtroEntrada in route-policy router bgp neighbor group address family configuration mode,address family command 1. 0) Polices on protocol (BGP, OSPF, SSH) and flow state (BGP established, BGP configured, and BGP listen) 0) Policing done on the LC Hardware ASIC before packets hit RP/LC CPU 0) Filters are automatically and dynamically installed by the IOS XR infrastructure This feature relies heavily on multiprotocol Border Gateway Protocol (BGP) extensions in the IPv4 network configuration on the provider edge (PE) router to exchange IPv6 reachability information (in addition to an MPLS label) for each IPv6 address prefix. This is the same router with same configuration, the changes only the version. • Install the best path into multiple routing table • Default RIB or VRF, IPv4/IPv6 • For other address family, pass the path calculation result to different lower layer components like step 2 (mvpn, evpn Bias-Free Language. BGP sessions are used to exchange Unicast routing information (for sources, RPs, and so on) and MVPN SAFI. 2 bgp graceful-restart bgp log neighbor changes detail ibgp policy out enforce-modifications address-family ipv6 unicast address-family vpnv6 unicast neighbor-group v6-csc remote-as 200 address-family ipv6 unicast next-hop-self soft-reconfiguration inbound always neighbor RP/0/RSP0/CPU0:Controller#show bgp ipv6 flowspec Mon Apr 8 17:55:17. description 1. 127 : bgp[1047]: %ROUTING-BGP-5-ADJCHANGE_DETAIL : neighbor x. You can tune BGP timers and GR timers for scenarios where you have a large number of prefixes as default values, which BGP Diverse Path Using a Diverse-Path Route Reflector; BGP Enhanced Route Refresh; Configuring BGP Consistency Checker; BGP—Origin AS Validation; BGP MIB Support; BGP 4 MIB Support for Per-Peer Received Routes; BGP Support for Nonstop Routing (NSR) with Stateful Switchover (SSO) Using L2VPN VPLS; BGP NSR Auto Sense; BGP NSR Support for Gateway Protocol (BGP) Cisco NSR interfaces. 30. 224. router bgp 4787 nsr neighbor 202. pdf), Text File (. 3. BGP Multi-Instance/Multi-AS BGP Multipath Load Sharing for Both eBGP and iBGP in an MPLS-VPN. Interaction Between BGP and an IGP; BGP Security; BGP Route Selection Rules and Load Balancing; Route Reflector; BGP Confederation; Route Summarization; Route Dampening; Suppression on BGP Peer Flapping; BMP; BFD for BGP; BGP Auto FRR; BGP GR and NSR; BGP ORF; Dynamic 545 Bgp Remote jobs available on Indeed. bgp router-id command 1 2. It is a very programmatic Hi all, We've received the following log message on our ASR9K for the last few days. end 8. GR capability has to be negotiated with peers. bgp nsr configuration example 1. Line rate forwarding on all interfaces in complex routing environments, for example, when route flapping occurs GR, NSF, NSR, and ISSU. BGP Prefix Origin Validation 1. We invite thinkers, doers, and changemakers to champion innovation, take calculated risks, and Reboot/Optional SMU, cannot remove route-target configuration out of VPLS BGP AD. Segmentation fault. Forum Guru. x due to 'ip-tcp' detected the 'warning' condition 'NSR is down because the retransmission threshold exceeded (probably because downstream RP is not healthy)' BGP speaker detects prefixes that are self-originated through the self-origination check (ORIGINATOR_ID, NEXTHOP/MP_REACH_NLRI) and drops the received updates. Worked extensively with ASR9K ( ), Nexus 7000, 5000, 2000, Cisco 6500 series multilayer switches, Cisco 2960s series Talking / requests to Ripe/Arin to get IP prefixes. routerbgp autonomous-system-number 4. Profile 13 : Rosen-mLDP-MP2MP with BGP C Router# show bgp l2vpn evpn Fri Aug 21 00:24:10. BGP Multi-Instance/Multi-AS BGP PIC Core is enabled only if a minimum of 15 BGP prefixes are received from the peer. OPERATIONAL DEFECT DATABASE With NSR, in the case of a failover event, routing changes are updated to the forwarding plane immediately. 3 !! Last configuration change at Wed Aug 14 /* BGP Configuration */ router bgp 200 nsr bgp router-id 209. is there such a command in asr9k? thanks in advance Such services typically require simultaneous scale increases across multiple dimensions, for example, the number of Virtual Routing and Forwarding (VRF) interfaces, IPv4 and IPv6 route scaling, BFD sessions, and instances of Border Gateway Protocol (BGP) Cisco NSR interfaces. LDP nonstop routing (NSR) functionality makes failures, such as Route Processor (RP) or Distributed Route Processor (DRP) failover, invisible to routing peers with minimal to no disruption of convergence performance. It describes BGP concepts such as how BGP allows for loop-free routing between autonomous systems using exterior gateway protocols. - When the BGP neighbour is not route refresh capable: 1. Is it possible to get this description attached to the BGP neighbor in observium thus then adding it to the alert when the BGP neighbor goes down? This is the config on a Cisco ASR9K for the above neighbor: router bgp 65000 neighbor 100. That means that it will send keepalives every 60 seconds and if it doesn't get 3 back, it will tear down the session. The BGP NSR Support for During the event, Cisco expert Xander Thuijs provides an in-depth overview of the Cisco ASR 9000 Series Aggregation Services Routers. show bgp update out. Enter the same number created The Border Gateway Protocol (BGP) is a distance vector protocol that allows devices between Autonomous Systems (ASs) to communicate and selects optimal routes. txt) or read online for free. For now i configured "soft-reconfiguration inbound" to use bgp route-refresh when it's possible. end-class-map. 102. 22. 181 description USG1-GREE. So if we make following configuration: router bgp 65374 neighbor 10. 0 0. 30, local AS number 100 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0x0 RD version: 0 BGP main routing table version 16 BGP NSR Initial initsync version 1 (Reached) BGP NSR/ISSU Sync-Group versions 16/0 Bias-Free Language. Someone knows where could i find those OIDs for Signaling protocol: BGP. Example: RP/0/ RSP0 /CPU0:router (config-cmap)# end-class-map Ends the class map configuration and returns the router to global NSR is an internal (vendor-specific) mechanism to extend the awareness of routing to the standby routing plane so that in case of failover, the newly active routing plane can take charge of the already established sessions. 69. このモジュールでは、 Cisco ASR 9000 シリーズ ルータ での双方向フォワーディング検出（BFD）の設定について説明します。 双方向フォワーディング検出（BFD）では、隣接する転送エンジン間のパスにおける障害を低オーバーヘッド、短期間で検出できます。 BGP—IPv6 NSR; BGP—Local-AS Allow-Policy; BGP—RT or VPN-ID Attribute Rewrite Wildcard; BGP—VRF Aware Conditional Advertisement; EIGRP Debug for EVN; EIGRP Support for 6PE/6VPE; Flexible NetFlow—Permanent Cache; Flexible NetFlow—MPLS Support; GTP v2 Support; IPSec Serviceability Debug; IPv6 Destination Guard; IPv6 Neighbor ASR9K is the first XR platform to support IPv6 QPPB. Fix CSCwh16039, ASR9K:7. Top . router bgp 64524. File Release Date: 23-JUL-2015. PW: neighbor 192. 573 NZDT Redundancy information for node 0/RSP0/CPU0: ===== Node 0/RSP0/CPU0 is in ACTIVE role Node Redundancy Partner (0/RSP1/CPU0) is in STANDBY role Standby node in 0/RSP1/CPU0 is ready Standby node in RP/0/RSP0/CPU0:router# show bgp labels BGP router identifier 2. Any BGP prefix seen on the Internet on given day would normally have an as path not longer than 10. 10. 165. routing policy, enforcing 1. 9 BGP main routing table version 9 BGP NSR Initial initsync version 4 (Reached) BGP NSR/ISSU Sync-Group versions 0/0 Status codes: s suppressed, d damped, h history, * valid, > best i - internal, r RIB Here is the config, but i don't suggest you head down this path, upgrade to 5. 201. 4446 RP/0/RSP0/CPU0:Oct 14 09:54:22. templatepeer-session session-template-name 5. In-Service System Upgrade (ISSU) Minimum Disruption Restart (MDR) During route processor switchover and In-Service System Upgrade (ISSU), NSR is achieved by stateful switchover (SSO) of both TCP and BGP. 1 Index 0 . 4. show bgp update in. show bfd neighbors vrf 1001 details show nothing. And you may want to consider BGP instead of VRRP on WAN side. Apply to Network Engineer, Software Architect, Auditor and more! 517 Bgp Remote jobs available on Indeed. 99, local AS number 65538 BGP table version is 3, main routing table version 3 2 network entries using 234 bytes of memory 2 path entries using 104 bytes of memory BGP router identifier 10. 0/22 in table Bias-Free Language. ODD. x Down - BGP Notification sent, NSR troubleshooting involves a lot of components, the first thing to check on an asr9k is show pfm loc all for any failure in the punt inject path from lc to standby/active rsp. show lisp. bgp router submode. Chinese; EN US; French; Japanese; Korean; Portuguese; Log In Now even the far end ASR9k routes are availabe in route table (not only in bgp table, its present route table as well) in both ASRs, however if i ping from one asr to another asr its not reachable. 18. 1, local AS number 65000 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0x0 RD version: 0 BGP main routing table version 144 BGP NSR Initial initsync version 3 (Reached) The layer 3 XL scale profile does not support video monitoring. Resource Public Key Infrastructure (RPKI) Route Origin Authorisation: Background. It supports high-density 100 and 400 Gigabit Ethernet line cards and provides backward compatibility with the Cisco ASR 9000 Series third generation family of line cards. The BGP Best External feature cannot be configured on a route reflector, unless it is running Cisco IOS XE Release 3. Software Updates for ASR 9000 Series Aggregation Services Routers. BGP Prefix-SID is a global SID, and the Experience working with large enterprise or service provider in a multi-site environment leveraging equipment including: Cisco Nexus 3K/5K/7K series switches, Cisco ASR9K, ASR1K series routers, UCS Fabric Interconnect/Chassis, Fortinet FortiGate firewalls. Quote #3; Mon Nov 11, 2024 6:42 pm. Based on interface qppb settings, for the source/Destination prefix, the IP Precedence and/or QOS group is set in ingress linecard and policy can be attached in egress linecard to act on the modified IP Precedence and/or QOS group. Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5. Well experienced in configuring First Hop redundancy protocols like HSRP, GLBP, and VRRP. 202. router bgp command 1. debug ip bgp event —Displays graceful restart timer events, such as the restart timer and the stalepath timer. x. Hi all! I'm serching the way to reduce bgp process memory utilization. Process restart of BGP or TCP . This document explains behaviour of Cisco routers running IOS-XR when configuring soft-reconfiguration Inbound Possible scenarios: 1. 98. y. Core Issue. Each of the 2 BGP peers must send the same set of 15 BGP prefixes to the DUT. Apply to Senior Network Engineer, Network Operations Technician, Network Security Engineer and more! Step 4. My adeptness extends to VPN technologies encompassing SSL VPN, IP Over 14 years of perl development experience. BGP Multi-Instance/Multi-AS BGP NSR provides nonstop routing during the following events: Route processor switchover . configureterminal 3. The EOR message is used by the NSF-aware router to start the stalepath timer, if BGP—IPv6 NSR. TLV Format Support for 5000 BGP NSR sessions was added . BGP-4 has been used since 1994. 192. BGP router identifier 10. 331 Hey folks, I have setup a VPWS-EVPN between two iBGP speakers within AS100: asr9k-3 router bgp 100 ! address-family l2vpn evpn ! neighbor 102. 1 bgp log-neighbor-changes timers bgp 10 30 ! Gateway Protocol (BGP) Cisco NSR interfaces. • Install the best path into multiple routing table • Default RIB or VRF, IPv4/IPv6 • For other address family, pass the path calculation result to different lower layer components like step 2 (mvpn, evpn BGP neighbor is 3. 168. 28. show isis checkpoint. 02 of this Form 8-K (including Exhibit 99. asr9k-diags-p. A BGP/MPLS VPN service provider In either case, MPLS is run in the backbone network and between the backbone and customer The Cisco ® ASR 9000 Series Route Switch Processor 5 (ASR 9000 RSP5) is the next-generation system processor for the Cisco ASR 9000 Series Routers. 0/24 neighbor 1. 13 soft. 2:BGP NSR Not Ready Plus BGP in blocked state for more than 13 hrs with churns/triggers. 2 Validating BGP Route Announcements. BFD Multihop Support for IPv4 Static Routes. 6. A Cisco ASR 9000 Series system configuration requiring high multiple-dimensional scale requires the service-edge optimized route switch processor model to support the increased system scale. I would recommend opening a TAC case to get to the bottom of it Support for 5000 BGP NSR sessions was added . 1, local AS number 65000 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0xe0000000 RD version: 245 BGP main routing table version 245 BGP NSR Initial initsync version 16 (Reached) BGP NSR/ISSU Sync-Group versions 245/0 BGP scan Before Non-Stop Routing (NSR) was enabled for LDP we experienced a 60+ second outage on VPN traffic when performing a 'redundancy switchover' on a transit router. It includes ASR9K & NCS5500 platform Configuration Sample telemetry model-driven destination-group telemetrycollection address-family ipv4 < Definition of a new BGP NLRI that describes links, nodes, and prefixes comprising of IGP link-state information Definition of a new BGP path attribute (BGP-LS attribute) that carries link, node, and prefix properties and attributes, such as the link and prefix metric or auxiliary Router- IDs of nodes ,and so on. PW backup disable delay 0 sec debug ip bgp —Displays open messages that advertise the graceful restart capability. exit-peer-session 7. BGP Multi-Instance/Multi-AS ASR9000 and it’s IOS XR required administrator to apply routing policy for every neighbor. 2, configured with bgp and bfd. 2 Soft-reconfiguration configured 1. nether. 032 : bgp[1047]: %ROUTING-BGP-5-NBR_NSR_DISABLED_STANDBY : NSR disabled on neighbor x. 5, local AS number 64696 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0x0 RD version: 20 BGP main routing table version 20 BGP NSR Initial initsync version 0 (Reached) BGP Flowspec Commands in the Routing Command Reference for Cisco ASR 9000 Series Routers guide provides additional details on the various commands used for BGP flowspec configuration. show bgp summary. sindy. Border Gateway Protocol (BGP) is an Exterior Gateway Protocol (EGP) that allows you to create loop-free inter-domain routing between autonomous systems. In Cisco ASR 9000 Series Aggregation Services Router, the centralized EVPN gateway with both EVPN and VPN address-families are enabled, so EVPN route stitching and re-origination does not occur. Cisco Aggregate Services Router 9000 ASR9K Security Bypass Vulnerability ; Cisco ASR 9000 Series Aggregation Services Routers tmp Files Denial of Service Vulnerability ; Cisco IOS Software BGP RR扩展注意事项和KPI监控 ; 运行Cisco IOS XR的路由器的Service Pack概述 ; 故 Hi all, We've received the following log message on our ASR9K for the last few days. RP/0/RSP1/CPU0:Feb 22 14:34:04. Routing protocols RIP, EIGRP, OSPF, BGP, and Redistribution. segment-routing router bgp 100 nsr bgp router-id 1. 041 UTC BGP router identifier 10. of IPv4 Unicast prefixes received from [ip removed] has reached 789285, max 1048576. Ping on ic subnet is working all the time. correct, if nsr drops, the bgp session can still be ok. showipbgptemplatepeer-session[session-template-name] Implementing BGP on ASR 9K - Free download as PDF File (. The NSR functionality is available only for Open Shortest Path First Protocol (OSPF) and Label Distribution Protocol (LDP) routing technologies. BGP DMZ Link Bandwidth for Unequal Cost Recursive Load Balancing Release 4. enable 2. 2 and faced with bgp process crashing. 127. Before Non-Stop Routing (NSR) was enabled for LDP we experienced a 60+ second outage on VPN traffic when performing a 'redundancy switchover' on a transit router. Hot swap of all components: QoS: Well-designed HQoS and advanced scheduling and congestion avoidance Talking / requests to Ripe/Arin to get IP prefixes. elms ,. The Cisco ® ASR 9000 Series Aggregation Services Routers (ASR 9000 Series) represent an exciting new paradigm in edge and core routing, with exceptional scalability, carrier-class reliability, I need to monitor BGP IPv6 peers on an ASR9K router. and the Border Routers, and between the Border routers as well. Example: RP/0/ RSP0 /CPU0:router (config-cmap)# end-class-map Ends the class map configuration and returns the router to global Also BGP have NSR enabled but our IGP (OSPF) have NSR disable. graceful-restart !! end The Cisco ® ASR 9000 Series Route Switch Processor 5 (ASR 9000 RSP5) is the next-generation system processor for the Cisco ASR 9000 Series Routers. 3 unpatched, 4. An autonomous system is a set The BGP flow specification (flowspec) feature allows you to rapidly deploy and propagate filtering and policing functionality among a large number of BGP peer routers to mitigate the effects of You can increase the memory available for BGP by configuring the Layer 3 XL profile on the Cisco ASR9000 Series Router using the hw-module profile scale l3xl command. Route Origin Validation: Introduction. BGP is operating in STANDALONE mode. Will that cause any issue ? #show redundancy Fri Dec 2 12:38:43. 00 Route(config-isis)# nsr Route(config-isis Device> enable Device# configure terminal Device(config)# router ospf 1 Device(config-router)# nsr Device(config-router)# end Device# show ip ospf 1 nsr Standby RP Operating in duplex mode Redundancy state: STANDBY HOT Peer redundancy state: ACTIVE ISSU negotation complete ISSU versions compatible Routing Process "ospf 1" with ID RouterA# show ip bgp peer-group ipv4_ucast_pg1 BGP peer-group is ipv4_ucast_pg1, remote AS 13 BGP version 4 Neighbor sessions: 0 active, is multisession capable Default minimum time between advertisement runs is 0 seconds For address family: IPv4 Unicast BGP neighbor is ipv4_ucast_pg1, peer-group internal, members: 10. Get a demo. BGP PIC edge provides sub-second convergence for Global prefixes, EoMPLS over BGP LU, VPLS, and 6PE. Example: RP/0/ RSP0 /CPU0:router (config-cmap)# end-class-map Ends the class map configuration and returns the router to global RP/0/RSP0/CPU0:ASR9k_R1# RP/0/RSP0/CPU0:ASR9k_R1#show bgp l2vpn evpn Thu Jun 9 23:13:36. My work on Upwork and with direct clients demonstrates a successful track record, especially in BGP and complex network design projects. 260 graceful In the realm of routing technologies, I possess proficiency in a range of protocols including BGP, MP-BGP, OSPF, EIGRP, Policy-based Routing, HSRP, and VRRP. PE recive full internet table (650k prefixes) from peer in VRF. Configure On-Demand Color Template. See also the “Configuring BGP Neighbor Session Options” chapter, the section “Configuring BFD for BGP IPv6 Neighbors. Why Choose Me? I take pride in understanding and exceeding client needs with tailored solutions. 9. show bgp vrf. You could use 15 or 20 to be safe. I Nonstop routing (NSR) allows an RP failover, process restart, or in-service upgrade to be invisible to peer routers and ensures that there is minimal performance or processing BGP NSR provides BGP nonstop routing (NSR) and nonstop forwarding (NSF) in the event of a switchover from an Active RP to the Standby RP. C9500H. 1 attached hereto) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as Product overview. I checked in my lab and it shows NSR-ready in 4. BGP Multi-Instance/Multi-AS Solved: Hello, I'm trying a simple BGP example here with asr9k ios 6. 255 Creates an IP extended access list, repeating the command as many times as necessary. 07 Cisco ASR 9000 Series Aggregation Services Router System Management Hi @n. OPERATIONAL DEFECT DATABASE Hey folks, I have setup a VPWS-EVPN between two iBGP speakers within AS100: asr9k-3 router bgp 100 ! address-family l2vpn evpn ! neighbor 102. OSPFv3 NSR. 2 interface TenGigE0/1/0/16 ! interface TenGigE0/1/0/17 ! Troubleshooting BGP Convergence • If import/export is involved, the import/export of all kind of variations • VRF import, AF import, global import, MVPN import, EVPN import, etc. (BGP) or Quality of Service (QoS) process incurs a fault, it restarts to resume its normal BFD の実装. 0001. after applying configuration on router bgp: neighbor y. 1. BGP Multi-Instance/Multi-AS Carrier is running his PE on ASR9k. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Re: VRRP with single WAN and Single LAN Address. 07 Cisco ASR 9000 Series Aggregation Services Router System Management We dont have NSR turned on for routing protocols BGP and OSPF. Could this description be pulled and added to the neighbor and thus alert? Bias-Free Language. 2 bgp graceful-restart bgp log neighbor changes detail ibgp policy out enforce-modifications address-family ipv6 unicast address-family vpnv6 unicast neighbor-group v6-csc remote-as 200 address-family ipv6 unicast next-hop-self soft-reconfiguration inbound always neighbor You can have 4 (or 8, requires admin config profile and has some pps implications) recursive ECMP (eg BGP paths) Each of those recursive can point to 32 non recursive paths (eg IGP loadbalancing) show platform hardware capacity' that allows you to see more specific memory use statistics. Release 4. Route Origin Validation: Vendor Support & Support for 5000 BGP NSR sessions was added . Overview Job Title: 2025 Summer Intern: Brand Design PepsiCo is a playground for curious people. C9500. 3:0 In label Request Records created: 0, freed: 0 In label Withdraw Records created: 0, freed: 0 Local Address Withdraw Set: 0, Cleared: 0 Transmit contexts The main benefit of implementing BFD for BGP is a marked decrease in reconvergence time. x Therearenoopencaveatsinthisrelease. ASR1K1#sh bfd neighbors vrf 1001 details ASR1K1# Please see below ASR1k configuration: router bgp 66000 bgp router-id 10. 773 PDT BGP router identifier 30. 101. BGP PIC edge works only when BGP PIC core is enabled. Find freelance Cisco ACI Freelancers for hire. • Proficient with Cisco IOS routers and switches (2900, 6500, 7200 series) and Cisco IOS-XR routers (ASR9k) • Skilled in Huawei and Raisecom PON network devices, Foundry/Brocade BGP router identifier 22. Use the on-demand color color command to create an ODN template for the specified color value. The head-end router automatically follows the actions defined in the Bias-Free Language. 1, local AS number 100 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0xe0000000 RD version: 30 BGP main routing table version 30 BGP NSR セッション、ボーダー ゲートウェイ プロトコル（BGP）の Cisco NSR インターフェイスのインスタンスなどが挙 げられます。多方面からの大規模な拡張を要する Cisco ASR 9900 のシステム構成では、システム規模の拡大に対 I am having trouble establishing a neighbor on my ASR9006 with a Brocade device and cannot find any information on what I am seeing in the debug output. com. 4, local AS number 100 Non-stop routing is enabled BGP table state: Active Table ID: 0xe0000007 RD version: 282 BGP main routing table version 287 BGP NSR Initial initsync version 31 Hi, i just want to know the steps, in order to configure NSR feature on ASR9010 (with 2 RP 440-TR & IOS ver 4. RIPE: Certified for BGP database integration, enabling efficient multi-AS management. The head-end router automatically follows the actions defined in the Device# show bgp ipv4 flowspec summary BGP router identifier 10. عرض ملف Nariman Sherif الشخصي على LinkedIn، وهو مجتمع احترافي يضم مليار عضو. # 49. 1 No soft-reconfiguration configured 1. BGP NSR with SSO is NSR troubleshooting involves a lot of components, the first thing to check on an asr9k is show pfm loc all for any failure in the punt inject path from lc to standby/active rsp. In IOS we used to have route-maps to control the import, export and manipulation of routes. The BGP segment is a local segment signaled by BGP Link State (topology information) to a SDN controller; it is used to steer traffic onto a BGP peer BGP conditional route injection is enabled with the bgp inject-map exist-map command and uses two route maps (inject map and exist map) to install one (or more) more specific prefixes into a This module provides information about Nonstop Routing (NSR), Using default BGP timers (60 sec KA and 180 sec hold timer expiry) and show commands, we can observe the number of packets received in the last 30 sec. Under address family IPv4 VRF, a BGP peer group is created and an SoO value is configured using a BGP neighbor command, and a neighbor is then identified and added as a peer group member. Regards, Apply routing policies to a service. 2 remote-as 4787 address-family ipv4 unicast route-policy PASS-ALL in route-policy PASS-ALL out ! update-source Bundle-Ether2. I do not understand what a "mirrored datacenter" means. 1, 4. Some problem i found in rib trace: Oct 16 06:24:14. This document provides information about implementing BGP on Cisco ASR 9000 Series Routers. This document outlines advancements in BGP infrastructure, VPN enhancements, and high availability features. 2020年 10月15日 (初版) TAC SR Collection 主な問題 IOS-XR 64bit (eXR) が動作しているASR9000 シリーズルータにおいて、リンクダウン等で 本来 BFD down が発生するタイミングにおいて %L2-BFD-4-ASYNC_DETECT_TIMER_FAULTY_EXPIRY が検知され BFD down までの時間が 2倍になってしまう問題が報告されています。 BFD では detect /* BGP Configuration */ router bgp 200 nsr bgp router-id 209. 5, local AS number 64696 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0x0 RD version: 20 BGP main routing table version 20 BGP NSR Initial initsync version 0 (Reached) The main benefit of implementing BFD for BGP is a marked decrease in reconvergence time. Introduction Telemetry configuration & troubleshooting steps Below is the list of telemetry sensors which can be used for system health monitoring. He will also show the packet BGP Peering Segment . After applying policer, if the number of packets received are less than the configured packet rate, after 85 sec, above details ルーティング：RIB、BGP、ISIS、OSPF、EIGRP、RIP、RPL、およびその他のルーティング プロトコル。 このバンドルのファイル名は、 asr9k-mini. OSPF NSR. The documentation set for this product strives to use bias-free language. IOS-XR doesn't have route-maps but something more powerful called route policy language. BGP started in 1989 to connect autonomous systems in a stable, efficient manner. BGP-1, BGP-2, and BGP-3 are three earlier versions of BGP. 2, local AS number 239 BGP table version is 3, main routing table version 3 2 network entries using 16608 bytes of memory 2 path entries using 152 bytes of memory 2/2 BGP path/bestpath attribute entries using 304 bytes of memory 1 BGP AS-PATH entries using 24 bytes of memory Note that if using NSR functionality (for protocols such as OSPF, LDP and BGP), the standby node needs to be in NSR-ready state. 107 Baku Building configuration !! IOS XR Configuration 6. if there was a failover at that time, it wouldnt be stateful and We have two ASR9K Version 6. -BGP-5-ADJCHANGE : neighbor Down - Peer closing down the session (VRF: default) RP/0/RSP1/CPU0:Oct 4 15:37:17 : bgp[1049]: %ROUTING-BGP-5-NBR_NSR_DISABLED_STANDBY : NSR disabled on neighbor on standby due to Peer RP/0/RSP0/CPU0:ASR9K-0# show running-config ipv4 access-list acl2 Wed Sep 3 03:11:47. 3, local AS number 200 BGP generic scan interval 60 secs Non-stop routing is enabled BGP table state: Active Table ID: 0x0 RD version: 0 BGP main routing table version 1 BGP NSR Initial initsync version 1 (Reached) BGP NSR/ISSU Sync-Group versions 0/0 BGP scan interval 60 secs. . 11. A lot fix of configuration on different devices. Refer to the "Implementing Routing Policy" chapter in the Routing Configuration Guide for Cisco ASR 9000 Series Routers. 0 If the router is ASR-9010, Bay 0 does not have any EPs. Thread:21 received signal:11 - SIGSEGV. The BGP Flowspec model comprises of a Client and a Server (Controller). ha-modesso 6. 8. 825 rib/ipv4_rib/rib-bcdl 0/RSP0/CPU0 t15 Bcdl (0x1): update group Hi All, I have been seeing lots of BGP Peer flap alerts on my ASR9010. 32 ) Thnks! Cisco IOS XR Deployment Best Practices for OSPF/IS-IS and BGP Routing Document ID:1658572599091352 7 BGP and BFD BGP convergence in a Service Provider network is important to meet customer expectations for Hi Chuck, from the logs looks like your changes didn't take effect, max number still showing the default limit. In the SNMP Object Navigator portal I located only the BGP IPv4 MIBs. 10 any 10 permit ipv4 any any ! BGP Flowspec Client-Server (Controller) Model and Configuration with ePBR. Troubleshooting BGP Convergence • If import/export is involved, the import/export of all kind of variations • VRF import, AF import, global import, MVPN import, EVPN import, etc. Border Gateway Protocol (BGP) support for Nonstop Routing (NSR) enables provider edge (PE) routers to maintain BGP state with customer edge (CE) routers and ensure continuous packet forwarding during a Route Processor (RP) switchover or during a planned In-Service Software Upgrade (ISSU) for a PE router. 129. The PE routers exchange EVPN and IP VPN BGP address-families information. fahddmokfzkhokngvdhvgotlyqqirgxluidjdqttmyzwroqpy