03-19-2024 07:05 PM
I've got a lab (in EVE-NG) with a number of different devices. Some are from Cisco, some aren't.
I'm currently working through scenarios with mixed environment (vEOS 4.31, XRv9000 7.7.1, nxosv9k-10.3.1.f).
In this portion of the lab scenario there is a multi-domain EVPN setup, two separate vEOS VXLAN EVPN domains which are interconnected using XRV9k.
I'm stuck on XRv9k not passing through EVPN prefixes from one VXLAN EVPN domain to another. XRv9k config is attached.
Question is - is XRV9k able to pass l2vpn evpn traffic? I though that at least the control plane would work, but it looks like it's not really receiving prefixes from VXLAN EVPN fabrics.
Current output from XRv9k router:
RP/0/RP0/CPU0:SJ-DC-CORE-01#sh bgp summary
Wed Mar 20 01:58:22.052 UTC
BGP router identifier 172.17.11.21, local AS number 65905
BGP generic scan interval 60 secs
Non-stop routing is enabled
BGP table state: Active
Table ID: 0xe0000000 RD version: 42
BGP main routing table version 42
BGP NSR Initial initsync version 2 (Reached)
BGP NSR/ISSU Sync-Group versions 0/0
BGP scan interval 60 secs
BGP is operating in STANDALONE mode.
Process RcvTblVer bRIB/RIB LabelVer ImportVer SendTblVer StandbyVer
Speaker 42 42 42 42 42 0
Neighbor Spk AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down St/PfxRcd
172.17.5.58 0 65910 17738 15146 42 0 0 00:45:44 2
172.17.5.66 0 65950 9150 7805 42 0 0 01:02:54 1
RP/0/RP0/CPU0:SJ-DC-CORE-01#
some more output from XRv9k
RP/0/RP0/CPU0:SJ-DC-CORE-01#sh bgp l2vpn evpn neighbors
Wed Mar 20 02:00:40.072 UTC
BGP neighbor is 172.17.11.6
Remote AS 65910, local AS 65905, external link
Description: SJ-DC-RM17-BL7-evpn
Remote router ID 172.17.11.6
BGP state = Established, up for 00:47:56
NSR State: None
Last read 00:00:00, Last read before reset 00:48:09
Hold time is 3, keepalive interval is 1 seconds
Configured hold time: 180, keepalive: 60, min acceptable hold time: 3
Last write 00:00:00, attempted 19, written 19
Second last write 00:00:01, attempted 19, written 19
Last write before reset 00:48:06, attempted 19, written 19
Second last write before reset 00:48:07, attempted 19, written 19
Last write pulse rcvd Mar 20 02:00:40.164 last full not set pulse count 12024
Last write pulse rcvd before reset 00:48:09
Socket not armed for io, armed for read, armed for write
Last write thread event before reset 00:48:06, second last 00:48:06
Last KA expiry before reset 00:48:06, second last 00:48:07
Last KA error before reset 00:00:00, KA not sent 00:00:00
Last KA start before reset 00:48:06, second last 00:48:07
Precedence: internet
Non-stop routing is enabled
Enforcing first AS is enabled
Multi-protocol capability received
Neighbor capabilities:
Route refresh: advertised (old + new) and received (new)
Graceful Restart (GR Awareness): received
4-byte AS: advertised and received
Address family L2VPN EVPN: advertised and received
Received 6522 messages, 15 notifications, 0 in queue
Sent 5537 messages, 2 notifications, 0 in queue
Minimum time between advertisement runs is 30 secs
Inbound message logging enabled, 3 messages buffered
Outbound message logging enabled, 3 messages buffered
For Address Family: L2VPN EVPN
BGP neighbor version 1
Update group: 0.2 Filter-group: 0.3 No Refresh request being processed
Community attribute sent to this neighbor
GSHUT Community attribute sent to this neighbor
Extended community attribute sent to this neighbor
AF-dependent capabilities:
Additional-paths Receive: received
Route refresh request: received 0, sent 0
Policy for incoming advertisements is pass_all
Policy for outgoing advertisements is pass_all
0 accepted prefixes, 0 are bestpaths
Exact no. of prefixes denied : 0.
Cumulative no. of prefixes denied: 0.
Prefix advertised 0, suppressed 0, withdrawn 0
My AS number is allowed 1 times in received updates
An EoR was not received during read-only mode
Last ack version 1, Last synced ack version 0
Outstanding version objects: current 0, max 0, refresh 0
Additional-paths operation: None
Send Multicast Attributes
Connections established 3; dropped 2
Local host: 172.17.11.21, Local port: 179, IF Handle: 0x00000000
Foreign host: 172.17.11.6, Foreign port: 44133
Last reset 00:48:06, due to BGP Notification sent: hold time expired
Time since last notification sent to neighbor: 00:48:06
Error Code: hold time expired
Notification data sent:
None
Time since last notification received from neighbor: 01:32:34
Error Code: connection rejected
Notification data received:
None
External BGP neighbor may be up to 2 hops away.
RP/0/RP0/CPU0:SJ-DC-CORE-01#
I will next try to replace vEOS devices withn xosv9k-10.3.1.f and configure multi-site EVPN. XRv9k would still be interconnection point between those sites
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide