Hi Everyone,
I have a Nexus 7010 with Sup1 + M1 line card, Connect to access switches per vlan (using access port)
this topology was work well, but some time ago, I came across some problem.
every few day (or few week) occurred some hosts suddenly could not be link (ping no response)
, and they would recover link after few second or minute.
I check my hosts physical link is no problem, all vlan STP root is on N7K
, and not found log about link fail. but I found whenever the problem occurred,
host in question 's arp entry was display incomplete in N7K ARP table,
and some related info in sh tech:
`show ip arp internal event-history event `
8678) Event:E_DEBUG, length:117, at 512021 usecs after Fri May 20 10:38:36 2015
[116] [3080]: Resend request for 10.114.19.20 on Vlan190, re-try count: 2. Next possible re-arp interval is 8 seconds
13942) Event:E_DEBUG, length:117, at 502023 usecs after Fri May 20 10:38:32 2015
[116] [3080]: Resend request for 10.114.19.20 on Vlan190, re-try count: 3. Next possible re-arp interval is 4 seconds
16568) Event:E_DEBUG, length:163, at 487393 usecs after Fri May 20 10:38:30 2015
[116] [3193]: Entry added for 10.114.19.20, NULL, state 1 on interface Vlan190, physical interface Vlan190, ismct 0. Rearp (interval: 2, count: 4), TTL: 30 seconds
16569) Event:E_DEBUG, length:63, at 487339 usecs after Fri May 20 10:38:30 2015
[116] [3193]: Create adjacency, interface Vlan190, 10.114.19.20
16570) Event:E_DEBUG, length:53, at 487333 usecs after Fri May 20 10:38:30 2015
[116] [3193]: ARP request for 10.114.19.20 on Vlan190
28904) Event:E_DEBUG, length:65, at 172018 usecs after Fri May 20 10:38:21 2015
[116] [3080]: Entry expired for 10.114.19.20 on interface Vlan190
I try to update NX-OS to 6.2(10), but the problem still occurs.
Sorry for my poor English.
Can anyone help in this matter of what I may have missed.
Thanks in advance.
