Thanks for the comments. This link is in it's own dedicated VLAN, switch port usage is low, only the LLT traffic. The switch backbone does see high load during backups, but the interface drops occur both during and outside of the backup windows. We utilize both ce1 and ce6 for LLT, ce1 is in a dedicated VLAN but ce6 is using VLAN1.
bash-2.05# lltstat -l
LLT link information:
Link Tag State Type Pri SAP MTU Addrlen
Xmit Recv Err LateHB
Broadcast
0 ce1 on etherfp hipri 0xCAFE 1500 6
1292283 999385 237795 0 4
FF:FF:FF:FF:FF:FF
1 ce6 on etherfp hipri 0xCAFE 1500 6
1295561 1004699 240467 0 6
FF:FF:FF:FF:FF:FF
bash-2.05# lltstat -nvv|head
LLT node information:
Node State Link Status Address
* 0 jfkdbsp1 OPEN
ce1 UP 00:03:BA:93:2D:08
ce6 UP 00:03:BA:85:53:60
1 jfkdbsf1 OPEN
ce1 UP 00:03:BA:93:2C:DB
ce6 UP 00:03:BA:95:05:81