R3303-HP HSR6800 Routers IRF Configuration Guide

26
Cate
g
or
y
Restrictions and
g
uidelines
IP address requirements
• Do not enable BFD MAD on a VLAN interface that has been assigned an IP
address. The VLAN interface becomes unreachable even if you disable BFD
MAD. To recover the connectivity of the VLAN interface, use the shutdown
and undo shutdown commands or reset ARP.
• To avoid problems, only use the mad ip address command to configure IP
addresses on the BFD MAD-enabled VLAN interface. For example, an IP
address configured with the ip address command or a VRRP virtual IP
address can cause problems.
• All MAD IP addresses on the BFD MAD-enabled VLAN interface must be on
the same subnet.
To configure BFD MAD:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Create a new VLAN
dedicated to BFD MAD.
vlan vlan-id
The default VLAN on the device
is VLAN 1.
3. Return to system view.
quit N/A
4. Enter Ethernet interface view
or interface range view.
• Enter interface range view:
{ Method 1:
interface range { interface-type
interface-number [ to
interface-type
interface-number ] } &<1-5>
{ Method 2:
interface range name name
[ interface { interface-type
interface-number [ to
interface-type
interface-number ] } &<1-5> ]
• Enter Ethernet interface view:
interface interface-type
interface-number
To assign a range of ports to the
BFD MAD VLAN, enter interface
range view.
To assign one port to the BFD
MAD VLAN, enter Ethernet
interface view.
5. Assign the port or the range
of ports to the BFD MAD
VLAN.
• Assign the port to the VLAN as an
access port:
port access vlan vlan-id
• Assign the port to the VLAN as a
trunk port:
port trunk permit vlan vlan-id
• Assign the port to the VLAN as a
hybrid port:
port hybrid vlan vlan-id { tagged |
untagged }
Choose one command
depending on the port type.
BFD MAD has no requirement for
the link type of the detection
port.
The default link type of a port is
access.
6. Return to system view.
quit N/A
7. Enter VLAN interface view.
interface vlan-interface
interface-number
N/A
8. Enable BFD MAD.
mad bfd enable
By default, BFD MAD is
disabled.