Globally Configuring The Destination Port Number For The Multi-Hop Bfd Control Packet; Establishing The Configuration Task - Huawei AR2200-S Series Configuration Manual

Huawei AR2200-S Series Enterprise Routers
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3.8 Globally Configuring the Destination Port Number for
the Multi-Hop BFD Control Packet
By configuring a global destination port number for multi-hop BFD control packets, you can
implement the interworking between the local device and a device running an earlier version,
and between a Huawei device and a non-Huawei device.

3.8.1 Establishing the Configuration Task

Before configuring a global destination port number for multi-hop BFD control packets,
familiarize yourself with the applicable environment, complete the pre-configuration tasks, and
obtain the required data. This can help you complete the configuration task quickly and
accurately.
Applicable Environment
The BFD control packet is encapsulated in the UDP packet for transmission, using the source
port in the range of 49152 to 65535 and destination port 3784 or 4784. According to the
RFC5883, the destination port 4784 is used for the multi-hop BFD control packet. On the
AR2200-S of the earlier version, however, destination port 3784 is used for the multi-hop BFD
control packet.
The destination port number of the multi-hop BFD control packet can be configured globally
according to the requirements:
l
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Pre-configuration Tasks
Before globally configuring the destination port number for the multi-hop BFD control packet,
complete the following tasks:
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Issue 01 (2012-01-06)
Total UP/DOWN Session Number : 1/0
To interwork with the device running the version earlier than the AR2200-S, the device
running the AR2200-S can be configured with destination port 3784 for the multi-hop BFD
control packet.
To interwork with the non-Huawei device, the device running the AR2200-S can be
configured with destination port 4784 for the multi-hop BFD control packet.
Installing the device and turning it on properly
Connecting interfaces correctly
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Copyright © Huawei Technologies Co., Ltd.
: Disable Acl Number
: 3784 TTL
: Disable
: 60000
: 3
: No Diagnostic
: No Application Bind
: - Session Detect TmrID
: - Session WTR TmrID
: -
: FSM-0|RCV-0|IF-0|TOKEN-0
: RouterA_to_RouterB
3 BFD Configuration
: -
: 255
: -
: -
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