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Description
Use
mad exclude interface
to exclude a physical network port from being shut down when the IRF fabric
transitions to the Recovery state upon detection of a multi-active collision.
Use
undo
mad
exclude
interface
to restore the default MAD action on a physical network port.
By default, all physical network ports but the IRF physical ports shut down when the IRF fabric transitions
to the Recovery state.
MAD action is not configurable for IRF physical ports.
When MAD detects that an IRF fabric has split into two or more identical active IRF fabrics, only the IRF
fabric whose master has the lowest member ID among all the masters can still forward data traffic. MAD
changes its status to Recovery on all the other IRF fabrics and shuts down all their physical ports except
the IRF physical ports and those 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 problems, 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 has failed or any other exception has
occurred, use the
mad restore
command to manually recover the member devices and bring up the ports.
Examples
# Exclude Ethernet 2/0/5 from being shut down when the MAD status transitions to Recovery.
<Sysname> system-view
[Sysname] mad exclude interface ethernet 2/0/5
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." This MAD IP address must not be on the same
subnet as any IP address configured on any member device.
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.
Description
Use
mad ip address
to assign 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.
