Configuring The Ttl Function Globally; Before You Start - Huawei NetEngine80E Configuration Manual - Reliability

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
Example
After the configuration, run the display bfd session all verbose command.According to the
preceding command output, you can view that destination port 3784 is used for the multi-hop
BFD control packet.
<HUAWEI> display bfd session all verbose
---------------------------------------------------------------------
Session MIndex : 16384
---------------------------------------------------------------------
Local Discriminator
Session Detect Mode
BFD Bind Type
Bind Session Type
Bind Peer IP Address
NextHop Ip Address
Bind Interface
FSM Board Id
Min Tx Interval (ms)
Actual Tx Interval (ms): 10
Local Detect Multi
Echo Passive
Destination Port
Proc Interface Status
WTR Interval (ms)
Active Multi
Last Local Diagnostic
Bind Application
Session TX TmrID
Session Init TmrID
Session Echo Tx TmrID
PDT Index
Session Description
---------------------------------------------------------------------------

5.13 Configuring the TTL Function Globally

Configuring the TTL globally helps you connect the current device and a device running an early
version.

5.13.1 Before You Start

Before configuring the TTL globally, familiarize yourself with the usage scenario, complete the
pre-configuration tasks, and obtain the required data. This helps you complete the configuration
task quickly and accurately.
Applicable Environment
If devices running different versions interwork with each other, the TTL values and detection
modes on both ends of a BFD session are different, resulting in BFD packet loss. The TTL is
set globally to enable Huawei devices to interwork with Huawei devices running different
NE80E/40E versions and non-Huawei devices.
Pre-configuration Tasks
Before configuring the TTL globally, complete the following tasks:
Issue 02 (2014-09-30)
(Multi Hop) State : Up
: 111
: Asynchronous Mode Without Echo Function
: Interface(GigabitEthernet1/0/0)
: Static
: 100.1.1.2
: 100.1.1.2
: GigabitEthernet1/0/0
: 6
: 10
: 3
: Disable
: 3784
: Disable
: -
: 3
: Control Detection Time Expired
: No Application Bind
: -
: -
: -
: FSM-B030000 | RCV-0 | IF-B030000 | TOKEN-0
: -
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Name : test
Remote Discriminator
TOS-EXP
Min Rx Interval (ms)
Actual Rx Interval (ms): 10
Detect Interval (ms)
Acl Number
TTL
Process PST
Session Detect TmrID
Session WTR TmrID
5 BFD Configuration
: 222
: 6
:10
: 30
: -
: 254
: Disable
: -
: -
360