Fiber link Up, Bytes RX/TX ok but no unicast packets

[Elvis_Chong]

Hi all,

I'm working on a case to bring up the trunk link between HP procurve 2610 series. The fiber port is UP and i could see the Bytes TX/RX is increasing but nothing for unicast RX/TX packets. Checked through all the required configuration already in place. Can you pls share if you have experience on this and how to check further and resolve this issue? Thanks.

Switch_ABC# sh int 27

Status and Counters - Port Counters for port 27

Name : Uplink fiber
MAC Address : 288023-47abcd
Link Status : Up
Totals (Since boot or last clear) :
Bytes Rx : 75,640 Bytes Tx : 2,462,052
Unicast Rx : 0 Unicast Tx : 0
Bcast/Mcast Rx : 398 Bcast/Mcast Tx : 16,052
Errors (Since boot or last clear) :
FCS Rx : 0 Drops Tx : 0
Alignment Rx : 0 Collisions Tx : 0
Runts Rx : 0 Late Colln Tx : 0
Giants Rx : 0 Excessive Colln : 0
Total Rx Errors : 0 Deferred Tx : 0
Others (Since boot or last clear) :
Discard Rx : 0 Out Queue Len : 0
Unknown Protos : 0
Rates (5 minute weighted average) :
Total Rx (bps) : 651,264 Total Tx (bps) : 4,713,048
Unicast Rx (Pkts/sec) : 0 Unicast Tx (Pkts/sec) : 0
B/Mcast Rx (Pkts/sec) : 0 B/Mcast Tx (Pkts/sec) : 0
Utilization Rx : 00.06 % Utilization Tx : 00.47 %

Switch_ABC# sh int 27 | i Bytes|Uni
Bytes Rx : 79,460 Bytes Tx : 2,574,435
Unicast Rx : 0 Unicast Tx : 0
Unicast Rx (Pkts/sec) : 0 Unicast Tx (Pkts/sec) : 0

Switch_ABC# sh int 27 | i Bytes|Uni
Bytes Rx : 79,460 Bytes Tx : 2,575,258
Unicast Rx : 0 Unicast Tx : 0
Unicast Rx (Pkts/sec) : 0 Unicast Tx (Pkts/sec) : 0

Switch_ABC# sh int 27 | i Bytes|Uni
Bytes Rx : 79,460 Bytes Tx : 2,575,381
Unicast Rx : 0 Unicast Tx : 0
Unicast Rx (Pkts/sec) : 0 Unicast Tx (Pkts/sec) : 0

Switch_ABC# sh int 27 | i Bytes|Uni
Bytes Rx : 79,651 Bytes Tx : 2,579,656
Unicast Rx : 0 Unicast Tx : 0
Unicast Rx (Pkts/sec) : 0 Unicast Tx (Pkts/sec) : 0

Appreciate your comments.

[16again]

What is spanning tree status on both sides?
Your figures might be normal for an STP blocked link

[Elvis_Chong]

Thanks for response, but the setup is only 1 uplink to the main switch and no redundancy thus i don't see spanning-tree is blocking since only single uplink.

[16again]

What is port config on both sides?   Do VLANs on both sides and their setting (tagged vs untagged ) correspond?

[Elvis_Chong]

Its a Fiber connection. (Tranceiver swapped but still same). Yeah, vlans(Tagged untagged) & configuration already double confirmed is alright. This is standard config we use on many sites but issue only happen when deploying this site.

[Vince-Whirlwind]

Show us the config for both switches, makre sure relevant interfaces have "description" set so we know what they are for.

Show spanning-tree on each switch.

show log on each switch.