Alcatel OmniSwitch 6624 Troubleshooting Manual page 124

Troubleshooting a Link Aggregation Failure
The show linkagg port CLI command followed by the slot and port number will display the port and link
state as well as if it is the primary port. (See the samples below.) If the operational or administrative state
is down and the port is primary, this indicates a software problem.
-> show linkagg port 7/1
Static Aggregable Port
SNMP Id
Slot/Port
Administrative State
Operational State
Port State
Link State
Selected Agg Number
Port position in the aggregate: 0,
Primary port
-> show linkagg 2
Dynamic Aggregate
SNMP Id
Aggregate Number
SNMP Descriptor
Name
Admin State
Operational State
Aggregate Size
Number of Selected Ports : 2,
Number of Reserved Ports : 2,
Number of Attached Ports : 2,
Primary Port
LACP
MACAddress
Actor System Id
Actor System Priority
Actor Admin Key
Actor Oper Key
Partner System Id
Partner System Priority
Partner Admin Key
Partner Oper Key
Verify spanning tree on the virtual port that represents the link aggregate is in forwarding with the show
spantree command. Note the aggregate group will be displayed as 0/aggregate ID.
-> show spantree 10 ports
Spanning Tree Port Summary for Vlan 10
Adm Oper Man. Path
Port Pri St
-----+---+---+----+----+-----+-----+----+---+-----+---+---+---------------------
- 5/1 7 ENA FORW
00:d0:95:79:62:8a
0/3 7 ENA FORW
If there are still connectivity problems across the aggregate link, make sure to check basic Ethernet
connectivity including spanning tree
page 7-4
: 7001,
: 7/1,
: ENABLED,
: UP,
: ATTACHED,
: UP,
: 3,
: YES
: 40000002,
: 2,
: Dynamic Aggregate Number 2 ref 40000002 size 8,
: ,
: ENABLED,
: UP,
: 8,
: 8/1
: [00:d0:95:6b:54:0c],
: [00:00:00:00:00:00],
: 0,
: 0,
: 2,
: [00:00:00:00:00:00],
: 0,
: 0,
: 2
Desig Fw
St mode Cost Cost Role Tx
No 19
No 3 0 ROOT
Prim. Adm Op
Port Cnx Cnx
3 DESG 1 5/1 AUT PTP C350-
1 0/3 AUT PTP 8000-00:d0:95:88:67:ca
OmniSwitch Troubleshooting Guide
Troubleshooting Link Aggregation
Desig Bridge ID
September 2005