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IRF Configuration

Category:HP -> Routing and Switching

Topology:

IRF-Configuration.jpg

Switch 1

irf member 1 priority 10

int Te1
/0/25
 shut
int Te1
/0/26
 shut

irf
-port 1/2
 port group 
interface Ten-GigabitEthernet1/0/25
 port group 
interface Ten-GigabitEthernet1/0/26

//possible combinations for irf-port are "irf-port 1/1" - "irf-port 2/2"
//NOT applicable “irf-port 1/1” - “irf-port 2/1” and “irf-port 1/2” - “irf-port 2/2”

//Go to Switch 2 and configure it, then continue

int Te1/0/25
 undo shut
int Te1
/0/26
 undo shut

irf
-port-configuration active 

Switch 2

irf member 1 renumber 2

reboot 
// use this command from user-view

int Te2/0/25
 shut
int Te2
/0/26
 shut

irf
-port 2/1
 port group 
interface Ten-GigabitEthernet2/0/25
 port group 
interface Ten-GigabitEthernet2/0/26

int Te2
/0/25
 undo shut
int Te2
/0/26
 undo shut

save

irf
-port-configuration active

//Go to Switch 1 and complete the process 

Complete checking procedures:

dis irf
dis irf top
dis irf config 

When the IRF stack is up, you should configure MAD (Multi-Active Detection) mechanism. MAD is used to prevent from duplicating IP addresses on switches if the IRF links go down. With MAD active and IRF links down the second switch won’t respond to pings although it would have the duplicate IP address. If MAD link is broken then the duplicate IP address on the second switch will respond resulting in network integrity corruption. To prevent such a behavior use MAD. There are three kinds of MAD realisation. We will use BFD MAD. For BFD MAD we will not need the third device for it function but we will need an additional link from both switches.

vlan 100
 description Service_BFD_MAD

interface Vlan-interface100
 mad bfd enable
 mad ip address 100.100.100.1 255.255.255.0 member 1
 mad ip address 100.100.100.2 255.255.255.0 member 2

interface GigabitEthernet1/0/24
 port link
-mode bridge
 port access vlan 100
 stp disable

interface GigabitEthernet2/0/24
 port link
-mode bridge
 port access vlan 100
 stp disable 

Check:

dis mad verbose 

 

By privilege15