Setting The Dr Keepalive Interval And Timeout Timer; Configuring A Dr Interface - H3C S7500X Series Configuration Manual

Configuration restrictions and guidelines
Make sure the DR member devices in a DR system use the same keepalive destination UDP port.
Configuration procedure
To configure DR keepalive packet parameters:
Step
1. Enter system view.
2. Configure DR keepalive
packet parameters.

Setting the DR keepalive interval and timeout timer

Overview
The device sends keepalive packets at the specified interval to its DR peer. If the device has not
received a keepalive packet from the DR peer before the keepalive timeout timer expires, the device
determines that the keepalive link is down.
Configuration restrictions and guidelines
The local DR keepalive timeout timer must be two times the DR keepalive interval of the peer at
minimum.
Configure the same DR keepalive interval on the DR member devices in the DR system.
Configuration procedure
To set the DR keepalive interval and timeout timer:
Step
1. Enter system view.
2. Set the DR keepalive interval
and timeout timer.

Configuring a DR interface

Configuration restrictions and guidelines
The device can have multiple DR interfaces. However, you can assign a Layer 2 aggregate interface
to only one DR group.
A Layer 2 aggregate interface cannot operate as both IPP and DR interface.
To improve forwarding efficiency, exclude the DR interface on the secondary DR device from the
shutdown action by DRNI MAD. This action enables the DR interface to forward traffic immediately
after a multi-active collision is removed without having to wait for the secondary DR device to
complete entry restoration.
Command
system-view
drni keepalive { ip | ipv6 }
destination { ipv4-address |
ipv6-address } [ source
{ ipv4-address | ipv6-address } |
udp-port udp-number |
vpn-instance
vpn-instance-name ] *
Command
system-view
drni keepalive interval interval
[ timeout timeout ]
11
Remarks
N/A
By default, the DR keepalive
packet parameters are not
configured. If you do not specify a
source IP address or destination
UDP port when you execute this
command, the IP address of the
outgoing interface and UDP port
6400 are used, respectively.
Remarks
N/A
By default, the DR keepalive
interval is 1000 milliseconds, and
the DR keepalive timeout timer is
5 seconds.