SIP语音业务走GRE隧道异常排查思路

1、分段抓包

服务器、交换机（出、入）

镜像服务器端口MTU修改2000

 ifconfig p5p1 mtu 5000 up

 

华为交换机：

out方向只支持端口镜像

observe-port 2 interface XGigabitEthernet1/1/0/0

镜像端口：

XGigabitEthernet1/1/0/1] port-mirroring to observe-port 2 outbound

 

in 支持端口、和acl traffic镜像

observe-port 1 interface GigabitEthernet1/6/0/23

acl number 3300
rule 20 permit ip source 172.16.68.209 0

traffic classifier zhuabao operator or precedence 25
if-match acl 3300

traffic behavior zhuabao
mirroring to observe-port 1

traffic policy zhuabao match-order config
classifier zhuabao behavior zhuabao

 

 

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