客户将SR6616-X设备上的GigabitEthernet1/7/0/2和GigabitEthernet1/7/0/3两个接口加入聚合组,并在两个接口下输入mirroring-group 1 mirroring-port both做镜像,但是镜像后用wireshark抓包软件所抓出来的报文中只看到了一个方向的数据流量:只有出反向的报文没有进方向的报文。客户原配置如下:
#
interface Route-Aggregation2
description to chukou-yidong
service chassis 1 slot 7
ip address x.x.x.x 255.255.255.224
#
interface GigabitEthernet1/7/0/1
port link-mode route
combo enable copper
mirroring-group 1 monitor-port
#
interface GigabitEthernet1/7/0/2
port link-mode route
combo enable copper
mirroring-group 1 mirroring-port both
port link-aggregation group 2
#
interface GigabitEthernet1/7/0/3
port link-mode route
combo enable copper
mirroring-group 1 mirroring-port both
port link-aggregation group 2
原因是镜像配置在了聚合组的子接口上了,将子接口上镜像的命令undo掉后,在聚合组上配置镜像的命令,即可在抓包中看到正常的报文交互过程
将聚合组子接口的镜像命令undo掉,将镜像的命令配置在聚合组下即可。修改后的配置如下:
#
interface Route-Aggregation2
description to chukou-yidong
service chassis 1 slot 7
ip address x.x.x.x 255.255.255.224
mirroring-group 1 mirroring-port both
#
interface GigabitEthernet1/7/0/1
port link-mode route
combo enable copper
mirroring-group 1 monitor-port
#
interface GigabitEthernet1/7/0/2
port link-mode route
combo enable copper
port link-aggregation group 2
#
interface GigabitEthernet1/7/0/3
port link-mode route
combo enable copper
port link-aggregation group 2
#
给聚合组全部的子接口做镜像的时候,在聚合组下面配置镜像端口,不要在聚合组子接口下配置,否则镜像后抓到的文件可能会存在只有一个方向的报文。
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