Mad Restore - HP FlexFabric 7900 Series Command Reference Manual

member member-id: Specifies an IRF member ID.
Usage guidelines
To use BFD MAD, configure a MAD IP address on a BFD MAD-enabled VLAN interface for each IRF
member. Make sure all the MAD IP addresses are on the same subnet.
To avoid problems, only use the mad ip address command to configure IP addresses on the BFD
MAD-enabled VLAN interface. Do not configure an IP address with the ip address command or
configure a VRRP virtual address on the BFD MAD-enabled VLAN interface.
The master tries to establish BFD sessions with other members by using its MAD IP address as the source
IP address:
When the IRF fabric is integrated, only the MAD IP address of the master is effective, and the
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master cannot establish a BFD session with any other member. If you execute the display bfd
session command, the state of the BFD sessions is Down.
When the IRF fabric splits, the IP addresses of the masters in the partitioned IRF fabrics take effect,
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and the two masters can establish a BFD session. If you execute the display bfd session command,
the state of the BFD session between the two devices is Up.
Examples
# Assign a MAD IP address to IRF member 1 on VLAN-interface 3.
<Sysname> system-view
[Sysname] interface vlan-interface 3
[Sysname-Vlan-interface3] mad ip address 192.168.0.1 255.255.255.0 member 1
# Assign a MAD IP address to IRF member 2 on VLAN-interface 3.
[Sysname-Vlan-interface3] mad ip address 192.168.0.2 255.255.255.0 member 2
Related commands
mad bfd enable

mad restore

Use mad restore to restore the normal MAD state of the IRF fabric in Recovery state.
Syntax
mad restore
Views
System view
Predefined user roles
network-admin
Usage guidelines
When MAD detects that an IRF fabric has split into multiple IRF fabrics, it sets one of the IRF fabrics to
the Detect state and all other IRF fabrics to the Recovery state.
The Detect-state IRF fabric is active and can continue to forward traffic.
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The Recovery-state IRF fabrics are inactive. MAD shuts down all their physical ports except the IRF
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ports and the ports manually configured to not shut down.
If the active IRF fabric has failed to work before the IRF split problem is fixed, use this command to
restore an IRF fabric in Recovery state to take over the active IRF fabric role.
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