AIX VCS LLT: One of the LLT links is showing as down

Problem

----- LLT link is  down for nic en2:

LLT node information:
    Node                 State    Link  Status  Address
   * 0 host0195       OPEN    
                                  en2   UP      0A:9A:75:AE:41:04
                                  en3   UP      0A:9A:75:AE:41:05
     1 host0196       OPEN    
                                  en2   DOWN    
                                  en3   UP      1E:40:3A:69:28:04

Error Message

----LLT in jeopardy
2010/05/22 20:21:50 VCS WARNING V-16-1-11155 LLT heartbeat link status changed. Previous status = 0x3; Current status = 0x1.
2010/05/22 20:21:51 VCS INFO V-16-1-10077 Received new cluster membership
2010/05/22 20:21:51 VCS NOTICE V-16-1-10112 System (sekiazu0195) - Membership: 0x3, DDNA: 0x2
2010/05/22 20:21:51 VCS ERROR V-16-1-10111 System sekiazu0196 (Node '1') is in Regular and Jeopardy Memberships - Membership: 0x3, Jeopardy: 0x2

GAB Port Memberships
===============================================================
Port a gen   30fc29 membership 01
Port a gen   30fc29   jeopardy ;1
Port b gen   30fc2d membership 01
Port b gen   30fc2d   jeopardy ;1
Port d gen   30fc2c membership 01
Port d gen   30fc2c   jeopardy ;1
Port f gen   30fc69 membership 01
Port f gen   30fc69   jeopardy ;1
Port h gen   30fc54 membership 01
Port h gen   30fc54   jeopardy ;1
Port o gen   30fc2e membership 01
Port o gen   30fc2e   jeopardy ;1
Port v gen   30fc65 membership 01
Port v gen   30fc65   jeopardy ;1
Port w gen   30fc67 membership 01
Port w gen   30fc67   jeopardy ;1

Cause

LLT links are setup using ethernet switch VLANs

---Each LLT link must be assigned to unique switch VLAN

---Need to confirm the VLAN configuration for each link

Solution

---Network admin changes VLAN ID for 2nd LLT link to be different that 1st LLT link.

----Ethernet switch status and VLAN ID

entstat -d en2|grep VLAN
Invalid VLAN ID Packets: 0
Port VLAN ID:   106   <<<<<<<
VLAN Tag IDs:  None


entstat -d en3|grep VLAN
Invalid VLAN ID Packets: 0
Port VLAN ID:   106   <<<<<<<
VLAN Tag IDs:  None
 
entstat -d en2|grep VLAN
Invalid VLAN ID Packets: 0
Port VLAN ID:   106 <<<<<<<<<<<<<<<<<<  keep
VLAN Tag IDs:  None


entstat -d en3|grep VLAN
Invalid VLAN ID Packets: 0
Port VLAN ID:   107  <<<<<<<<<<<<<<<<< changed
VLAN Tag IDs:  None
 


Applies To

VCS 5.0MP3

2 node cluster

LLT links /etc/llttab

link en2 /dev/dlpi/en:2 - ether - 1500
link en3 /dev/dlpi/en:3 - ether - 1500

---use of ethernet switch VLAN for LLT links

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