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MLAG Configuration
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03-31-2021 08:40 AM
Hello;
I have configured an MLAG between 2 X590 routers with a double LACP link between them. This is my configuration:
create vlan "MLAG_CORE"
configure vlan MLAG_CORE tag 250
enable sharing 29 grouping 29,33 algorithm address-based L2 lacp
configure vlan MLAG_CORE add ports 29 tagged
configure vlan MLAG_CORE ipaddress 10.250.0.2 255.255.255.252
create mlag peer "CORE"
configure mlag peer "CORE" ipaddress 10.250.0.1 vr VR-Default
configure mlag peer "CORE" lacp-mac 00:04:96:e5:17:94
This is the output of the command:
R-A52.2 # sh mlag peer
Multi-switch Link Aggregation Peers:
MLAG Peer : CORE
VLAN : MLAG_CORE Virtual Router : VR-Default
Local IP Address : 10.250.0.2 Peer IP Address : 10.250.0.1
MLAG ports : 0 Tx-Interval : 1000 ms
Checkpoint Status : Up Peer Tx-Interval : 1000 ms
Rx-Hellos : 79465 Tx-Hellos : 79466
Rx-Checkpoint Msgs: 3904 Tx-Checkpoint Msgs: 3904
Rx-Hello Errors : 0 Tx-Hello Errors : 0
Hello Timeouts : 0 Checkpoint Errors : 0
Up Time : 0d:21h:37m:54s Peer Conn.Failures: 0
Local MAC : 00:04:96:e5:17:94 Peer MAC : 00:04:96:e5:17:22
Config'd LACP MAC : 00:04:96:e5:17:94 Current LACP MAC : 00:04:96:e5:17:94
But when I run the following command it doesn't give me any information:
R-A52.3 # sh mlag ports
Local Local Remote
MLAG Local Link Remote Peer Fail Fail
Id Port State Link Peer Status Count Count
=============================================================================
=============================================================================
Local Link State: A - Active, D - Disabled, R - Ready, NP - Port not present
Remote Link : Up - One or more links are active on the remote switch,
Down - No links are active on the remote switch,
N/A - The peer has not communicated link state for this MLAG port,
Virtual - MLAG peer switch does not have physical port.
Number of Multi-switch Link Aggregation Groups : 0
Convergence control : Conserve Access Lists
Reload Delay Interval : 30 seconds
Reload Delay : Disabled
Link Up Isolation : Off
I am missing any configuration ??, or is it that I have not created downlink yet.
Solved! Go to Solution.
1 ACCEPTED SOLUTION
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03-31-2021 04:52 PM
5 REPLIES 5
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03-31-2021 04:52 PM
you forgot to enable sharing on port 22 on both mlag peers
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03-31-2021 02:19 PM
The ports below haven’t received any LACP packets therefore are not joining the aggregrate:
Lag Member Rx Rx Drop Rx Drop Rx Drop Tx Tx
Group Port Ok PDU Err Not Up Same MAC Sent Ok Xmit Err
--------------------------------------------------------------------------------
1:52 1:52 0 0 0 0 3150 0
2:52 0 0 0 0 2993 0
=============================================================================
What is on the other side of those links?
Thanks,
Chris Thompson
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03-31-2021 02:14 PM
Hello;
I have configured an MLAG between 2 X590 routers with a double LACP link between them. This is my configuration:
R1:
create vlan "MANAGE"
configure vlan MANAGE tag 1000
create vlan "MLAG_CORE"
configure vlan MLAG_CORE tag 250
configure ports 29 description-string "LINK_R-A52_Port_29_VRRP"
enable sharing 29 grouping 29.33 algorithm address-based L2 lacp
configure vlan MANAGE add ports 1-32,34-36 untagged
configure vlan MLAG_CORE add ports 29 tagged
configure vlan MANAGE ipaddress 10.1.0.251 255.255.0.0
enable ipforwarding vlan MANAGE
configure vlan MLAG_CORE ipaddress 10.250.0.1 255.255.255.252
create mlag peer "CORE"
configure mlag peer "CORE" ipaddress 10.250.0.2 vr VR-Default
configure mlag peer "CORE" lacp-mac 00:04:96:e5:17:94
enable mlag port 22 peer "CORE" id 1
R2:
create vlan "MANAGE"
configure vlan MANAGE tag 1000
create vlan "MLAG_CORE"
configure vlan MLAG_CORE tag 250
configure ports 29 description-string "LINK_R-A52_Port_29_VRRP"
enable sharing 29 grouping 29.33 algorithm address-based L2 lacp
configure vlan MANAGE add ports 1-32,34-36 untagged
configure vlan MLAG_CORE add ports 29 tagged
configure vlan MANAGE ipaddress 10.1.0.252 255.255.0.0
enable ipforwarding vlan MANAGE
configure vlan MLAG_CORE ipaddress 10.250.0.2 255.255.255.252
create mlag peer "CORE"
configure mlag peer "CORE" ipaddress 10.250.0.1 vr VR-Default
configure mlag peer "CORE" lacp-mac 00: 04: 96: e5: 17: 94
enable mlag port 22 peer "CORE" id 1
This is the command output (same on both routers)
R1#show mlag peer
Multi-switch Link Aggregation Peers:
MLAG Peer : CORE
VLAN : MLAG_CORE Virtual Router : VR-Default
Local IP Address : 10.250.0.2 Peer IP Address : 10.250.0.1
MLAG ports : 1 Tx-Interval : 1000 ms
Checkpoint Status : Up Peer Tx-Interval : 1000 ms
Rx-Hellos : 98878 Tx-Hellos : 98880
Rx-Checkpoint Msgs: 4943 Tx-Checkpoint Msgs: 4872
Rx-Hello Errors : 0 Tx-Hello Errors : 0
Hello Timeouts : 0 Checkpoint Errors : 0
Up Time : 1d:2h:54m:59s Peer Conn.Failures: 0
Local MAC : 00:04:96:e5:17:94 Peer MAC : 00:04:96:e5:17:22
Config'd LACP MAC : 00:04:96:e5:17:94 Current LACP MAC : 00:04:96:e5:17:94
Authentication : None
Alternate path information: None
R1#sh mlag ports
Local Local Remote
MLAG Local Link Remote Peer Fail Fail
Id Port State Link Peer Status Count Count
================================================================================
1 22 A Up CORE Up 0 0
================================================================================
Local Link State: A - Active, D - Disabled, R - Ready, NP - Port not present
Remote Link : Up - One or more links are active on the remote switch,
Down - No links are active on the remote switch,
N/A - The peer has not communicated link state for this MLAG port,
Virtual - MLAG peer switch does not have physical port.
Number of Multi-switch Link Aggregation Groups : 1
Convergence control : Conserve Access Lists
Reload Delay Interval : 30 seconds
Reload Delay : Disabled
Link Up Isolation : Off
This is the configuration of my switches stack
SW1-stack
configure snmp sysName "SW-A51"
configure snmp sysContact "https://www.extremenetworks.com/support/"
configure slot 1 module X450G2-48p-10G4
configure sys-recovery-level slot 1 reset
configure slot 2 module X450G2-48p-10G4
create vlan "MANAGE"
configure vlan MANAGE tag 1000
enable sharing 1:52 grouping 1: 52,2: 52 algorithm address-based L2 lacp
configure vlan MANAGE add ports 1: 1-52,2: 1-51 untagged
configure vlan MANAGE ipaddress 10.1.0.241 255.255.0.0
enable ipforwarding vlan MANAGE
Slot-1 SW-A51.2 # sh lacp
LACP Up : Yes
LACP Enabled : Yes
System MAC : 02:04:96:e3:eb:d8
LACP PDUs dropped on non-LACP ports : 0
Lag Actor Actor Partner Partner Partner Agg
Sys-Pri Key MAC Sys-Pri Key Count
--------------------------------------------------------------------------------
1:52 0 0x041c 00:00:00:00:00:00 0 0x0000 0
================================================================================
* Slot-1 SW-A51.3 # sh lacp
<cr> Execute the command
counters Counters
lag LACP user defined LAG (link agg group)
member-port Member port of the LACP trunk
| Filter the output of the command
sh lacp counters
LACP PDUs dropped on non-LACP ports : 0
LACP Bulk checkpointed msgs sent : 1
LACP Bulk checkpointed msgs recv : 0
LACP PDUs checkpointed sent : 0
LACP PDUs checkpointed recv : 0
Lag Member Rx Rx Drop Rx Drop Rx Drop Tx Tx
Group Port Ok PDU Err Not Up Same MAC Sent Ok Xmit Err
--------------------------------------------------------------------------------
1:52 1:52 0 0 0 0 3150 0
2:52 0 0 0 0 2993 0
================================================================================
Slot-1 SW-A51.10 # sh lacp lag 1:52
Lag Actor Actor Partner Partner Partner Agg Actor
Sys-Pri Key MAC Sys-Pri Key Count MAC
--------------------------------------------------------------------------------
1:52 0 0x041c 00:00:00:00:00:00 0 0x0000 0 02:04:96:e3:eb:d8
Port list:
Member Port Rx Sel Mux Actor Partner
Port Priority State Logic State Flags Port
--------------------------------------------------------------------------------
1:52 0 Defaulted Unselected Detached A-G---F- 0
2:52 0 Defaulted Unselected Detached A-G---F- 0
================================================================================
Actor Flags: A-Activity, T-Timeout, G-Aggregation, S-Synchronization
C-Collecting, D-Distributing, F-Defaulted, E-Expired
the problem I have is that there is no ping response from the routers to the switch stack.
Can anybody help me??
Thanks
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03-31-2021 09:05 AM
For more details see here:
https://extremeportal.force.com/ExtrArticleDetail?an=000079895
Regards
Stephan
