27
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The Recovery-state IRF fabrics are inactive. MAD shuts down all their physical ports except the
physical IRF ports and the ports manually configured to not shut down.
If a port must be kept in up state for special purposes such as Telnet connection, exclude it from the
shutdown action. To avoid incorrect traffic forwarding, H3C recommends not excluding any ports except
the ports used for Telnet and MAD.
The ports that have shut down by MAD come up when the member devices reboot to join the recovered
IRF fabric. If auto recovery fails because the current master fails or any other exception occurs, use the
mad restore
command to manually recover the member devices and bring up the ports.
Examples
# Exclude GigabitEthernet 2/3/0/1 from being shut down when the IRF fabric transits to Recovery state.
<Sysname> system-view
[Sysname] mad exclude interface GigabitEthernet 2/3/0/1
mad ip address
Syntax
mad ip address
ip-address
{
mask
|
mask-length
}
member
member-id
undo mad ip address
ip-address
{
mask
|
mask-length
}
member
member-id
View
VLAN interface view
Default level
3: Manage level
Parameters
ip-address
: Specifies an IP address in dotted decimal notation. This IP address is bound to an IRF member
for BFD detection and is called a "MAD IP address."
mask
: Specifies a subnet mask in dotted decimal notation.
mask-length
: Specifies a subnet mask in length, in the range of 0 to 32.
member
member-id
: Specifies an IRF member ID in the range of 1 to 4.
Description
Use
mad ip address
to a MAD IP address to an IRF member on a VLAN interface for BFD MAD.
Use
undo
mad
ip
address
to delete a MAD IP address.
By default, no MAD IP address is configured on any VLAN interface.
To use BFD MAD, you must configure a MAD IP address on a BFD MAD enabled VLAN interface for each
IRF member, and 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:
