DS03/DS04 S9500(V3)作为汇聚设备
AS05/AS06 S9500(V3)作为接入设备
AS05和DS03设备通过聚合链路互联,但在DS03设备的两个聚合组成员口上有大量CRC报文增长,为了排查这一故障的原因,我们让一线在现场进行光模块、光纤和端口的替换测试,在端口替换测试过程中,一线将G0/1/3替换为同一单板上的G0/1/15端口测试是否还有CRC增长,测试完成后发现故障现象依旧存在,一线执行回退操作,恢复到原来的聚合状态,在这一恢复过程中,现场在G0/1/15端口下执行undo port trunk permit vlan操作,发现整个聚合组内的permit vlan配置都被删除了,因此导致了客户业务中断。
(1)
(2)
%Nov 25 16:51:03 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:qu
%Nov 25 16:50:51 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:dis link-aggregation verbose 5
%Nov 25 16:50:33 2019 SHE2003_OS_DS_03 MSTP/3/DETECTEDTC:Instance 0's port GigabitEthernet0/1/3 detected topology change!
%Nov 25 16:50:22 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:dis this
%Nov 25 16:50:20 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:undo description
%Nov 25 16:50:15 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:undo stp root-protection
%Nov 25 16:50:06 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:dis this
%Nov 25 16:50:03 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:undo port link-aggregation group
%Nov 25 16:49:51 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:dis this
%Nov 25 16:49:47 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:shutdown
%Nov 25 16:49:39 2019 SHE2003_OS_DS_03 L2INF/5/VLANIF LINK STATUS CHANGE:
Vlan-interface1: is UP
%Nov 25 16:49:39 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:undo port link-type
%Nov 25 16:49:34 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:interface GigabitEthernet 0/1/15
%Nov 25 16:49:28 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:qui
%Nov 25 16:49:24 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:dis this
%Nov 25 16:49:21 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:undo port link-type
%Nov 25 16:49:08 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:dis cu interface GigabitEthernet 1/1/16
%Nov 25 16:48:55 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:dis this
%Nov 25 16:48:52 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:port trunk permit vlan 1
%Nov 25 16:48:39 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:dis this
%Nov 25 16:48:37 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:undo description
%Nov 25 16:48:33 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:undo stp root-protection
%Nov 25 16:48:17 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:dis this
%Nov 25 16:48:15 2019 SHE2003_OS_DS_03 DIAGCLI/5/LOG_WARN:Slot=1;
Detect ARP attack from MAC 0cda-41ad-c500, VLAN: 10, GigabitEthernet1/1/24 !
%Nov 25 16:48:13 2019 SHE2003_OS_DS_03 MSTP/3/DETECTEDTC:Instance 0's port GigabitEthernet0/1/3 detected topology change!
%Nov 25 16:47:51 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:undo port trunk permit vlan 10 1200 1202 to 1203 1257 to 1269 1271 to 1279 1281 to 1282 1285 to 1295 1311 to 1312
%Nov 25 16:47:43 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:undo port link-aggregation group
%Nov 25 16:47:31 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:shutdown
%Nov 25 16:47:16 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:dis this
%Nov 25 16:47:14 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:interface GigabitEthernet 1/1/15
根据操作记录,在进行回退时,先对G1/1/15进行操作:
%Nov 25 16:47:14 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:interface GigabitEthernet 1/1/15
先敲了退出聚合组命令:
%Nov 25 16:47:43 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:undo port link-aggregation group
再对该端口放通的vlan做了回退操作:
%Nov 25 16:47:51 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:undo port trunk permit vlan 10 1200 1202 to 1203 1257 to 1269 1271 to 1279 1281 to 1282 1285 to 1295 1311 to 1312
而在之后对G0/1/15进行回退操作时:
%Nov 25 16:49:34 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:interface GigabitEthernet 0/1/15
一线先undo了端口类型的配置:
%Nov 25 16:49:39 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:undo port link-type
再将端口退出聚合组:
%Nov 25 16:50:03 2019 SHE2003_OS_DS_03 SHELL/5/CMD:task:co0 ip:** user:** command:undo port link-aggregation group
也就是说,在对G0/1/15进行回退操作时,一线在该端口还是聚合组成员端口时,就改变了该端口的链路类型,导致该端口放通的vlan被改变,又因为V3版本的链路聚合配置很特殊,在成员端口上放通或者不放通vlan会直接改变整个聚合组的所有成员端口的vlan配置,而不是像V5或者V7这样,改变成员端口的vlan配置会有提示,且会导致该端口重新协商是否能加入聚合组,不会影响聚合组下其他成员端口的配置。
由于聚合组内其他成员端口的vlan配置都因为“undo port link-type”这条命令被删除了,所以导致了业务中断,重新刷配置才恢复。
(1) V3设备在聚合组成员端口下做删除vlan操作会删掉整个聚合组的相关配置,因此在做类似操作时要先将端口退出聚合组。
(2) V3的部分配置和现在我们熟悉的V5和V7的操作有很大的不同,建议在对现网的V3设备做操作之前先确认一下配置手册。
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