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Configuration

link to documentation

MC-LAG : share a common LAG endpoint ( the other endpoint is the server,CPE )

Intra-Domain-Link (IDL)

to synchronize the states between both routers

via MCEC packets

No data traffic is carried over the IDP

Intra-Domain-Peer (IDP)

to synchronize the states between both routers

Layer 3 communication path to carry MCEC packets.

No data traffic is carried over the IDP

Example

View file

name	mlag.pdf
height	250

Drawing

Link to drawing

R5 and R6 config example

Code Block

title	config
collapse	true

R5LAB
------

hardware-profile filter egress-l2 enable

interface ce1
  switchport
  description "R5-R6 peer-link or line between mlag domain"


mcec domain configuration
 domain-address 1111.2222.3333
 domain-system-number 1
 intra-domain-link ce1
 domain-hello-timeout short
 
 
bridge 1 protocol rstp vlan-bridge
vlan 2 bridge 1 state enable

interface mlag1 
  bridge-group 1 spanning-tree disable
  switchport
  switchport mode trunk
  switchport trunk allowed vlan all

interface mlag1
   mode active-active
>>> commit


interface po1
  switchport
  mlag 1

interface xe10
  channel-group 1 mode active

=========================================
R6LAB:
------

hardware-profile filter egress-l2 enable

interface ce1
  switchport
  description "R5-R6 peer-link or line between mlag domain"
  
  
mcec domain configuration
  domain-address 1111.2222.3333
  intra-domain link ce1
  domain-system-number 2
 domain-hello-timeout short

. . .

commands

link to documentation

LAG or po

po port channel or link aggregation LAG

show commands

show mlag domain summary

Code Block

title	show mlag
collapse	true

R5LAB#show mlag domain summary

------------------------------------
Domain Configuration
------------------------------------

Domain System Number            : 1
Domain Address                  : 1111.2222.3333
Domain Priority                 : 32768
Intra Domain Interface          : ce1
Domain Adjacency                : UP
MCEC PDU local version          : 1
MCEC PDU peer version           : 1
Domain Sync via                : Intra-domain-interface
Peer SVI interface MAC Address : E8.C5.7A.2E.50.1B

------------------------------------
MLAG Configuration
------------------------------------

MLAG-1
  Mapped Aggregator            : po1
  Physical properties Digest   : 54 a9 3a 2a 2b 50 65 bb 3c bc 3d bd c2 43 d6 22
  Total Bandwidth              : 20g
  Mlag Sync                    : IN_SYNC
  Mode                         : Active-Active
  Current Mlag state           : Active

show etherchannel summary

Code Block

title	show etherchannel
collapse	true

R5LAB#show etherchannel summary
  Aggregator po1 100001
  Aggregator Type: Layer2
  Parent Aggregator : Active mlag1
  Admin Key: 16385 - Oper Key 16385
     Link: xe10 (5011) sync: 1 (Mlag-active-link)

show port etherchannel po1

Code Block

title	show port etherchannel
collapse	true

R5LAB#show port etherchannel po1
LAG ID                       : 0x8000,11-11-22-22-33-33,0x4001
Partner oper LAG ID          : 0x8000,e8-c5-7a-08-ee-1c,0x0001
Aggregator ID                : 100001
  LACP link info             : xe10 - 5011
  Periodic Transmission
  machine state              : Slow periodic
  Receive machine state      : Current
  Mux machine state          : Collecting/Distributing
  Actor Info :
  ===========
  Actor Port priority        : 0x8000 (32768)
  Admin key                  : 0x4001 (16385) Oper key: 0x4001 (16385)
  Physical admin key         : (1)
  Actor Oper state           : ACT:1 TIM:0 AGG:1 SYN:1 COL:1 DIS:1 DEF:0 EXP:0
  Actor Admin state          : ACT:1 TIM:0 AGG:1 SYN:0 COL:0 DIS:0 DEF:1 EXP:0
  Partner Info:
  ============
  Partner oper port          : 10018
  Partner link info          : admin port 0
  Partner admin LAG ID       : 0x0000-00:00:00:00:0000
  Partner system priority    : admin:0x0000 - oper:0x8000
  Partner port priority      : admin:0x0000 - oper:0x8000
  Partner oper state         : ACT:1 TIM:0 AGG:1 SYN:1 COL:1 DIS:1 DEF:0 EXP:0
  Partner admin state        : ACT:0 TIM:0 AGG:1 SYN:0 COL:0 DIS:0 DEF:1 EXP:0

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Old Version 13

New Version 14

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