12-29-2014 11:32 PM - edited 03-07-2019 10:02 PM
Hi All,
I'm facing a strange issue!. I have a pair of nexus 5548 running vpc. Everything work fine but when i reload one 5k, the vpc peer link remains suspended. I investigated and found that the svi i used for keepalive remains down after the reboot.
DR1-ACC-5K-B1-2# sh vpc peer-keepalive
vPC keep-alive status : peer is not reachable through peer-keepalive
--Send status : Success
--Last send at : 2009.03.02 10:27:34 272 ms
--Sent on interface :
--Receive status : Failed
--Last update from peer : (2538) seconds, (448) msec
vPC Keep-alive parameters
--Destination : 20.20.20.1
--Keepalive interval : 1000 msec
--Keepalive timeout : 5 seconds
--Keepalive hold timeout : 3 seconds
--Keepalive vrf : VPC-KEEPALIVE
--Keepalive udp port : 3200
--Keepalive tos : 192
DR1-ACC-5K-B1-2#
____________________________________________________
DR1-ACC-5K-B1-2# sh inter vlan 900
Vlan900 is down, line protocol is down
Hardware is EtherSVI, address is 8c60.4f19.1f7c
Internet Address is 20.20.20.2/30
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec
i tried shut no shut but no success.
Solved! Go to Solution.
12-30-2014 03:58 AM
Hello.
That is the issue.
Peer-keepalive should be either a direct cable between the boxes, or go via some other (external) switch. It must not flow via peer-link.
PS just in case: dynamic L3-routing over VPC-enabled VLANs are not supported as well.
12-30-2014 01:13 AM
Hello.
Do you enable VL 900 on peer-link?
12-30-2014 03:28 AM
Hi Vasili,
Yes i didn't do any restrictions on the vpc link trunk ( allowed all vlans including keepalive vlan)
12-30-2014 03:58 AM
Hello.
That is the issue.
Peer-keepalive should be either a direct cable between the boxes, or go via some other (external) switch. It must not flow via peer-link.
PS just in case: dynamic L3-routing over VPC-enabled VLANs are not supported as well.
12-30-2014 04:30 AM
You are right,
I just removed vlan 900 from peer-link trunk and now keep-alive is fine!.
Thank you very much!
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