N7K上eigrp邻居反复up/down

[a_pan]

现象描述：
2台N7K核心交换机，2台核心路由器；
其中，N7K之间做了链路捆绑并放行vlan，
核心交换机与核心路由器之间交叉互联（大致拓扑图如附件1）
现在的问题是：
在核心交换机上频繁出现eigrp邻居up/down信息，如下：
SWITCH_A# show logging
2017 Mar 26 08:11:23 SWITCH_A %EIGRP-3-SIA_DUAL: eigrp-100 [5755] (default-base) Route 172.23.68.96/27 stuck-in-active state in IP-
EIGRP(0) 100. Cleaning up
2017 Mar 26 08:11:23 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 172.26.41.2 (Vlan1
) is down: stuck in active
2017 Mar 26 08:11:26 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 172.26.41.2 (Vlan1
) is up: new adjacency
2017 Mar 26 08:49:17 SWITCH_A %EIGRP-3-SIA_DUAL: eigrp-100 [5755] (default-base) Route 172.23.68.96/27 stuck-in-active state in IP-
EIGRP(0) 100. Cleaning up
2017 Mar 26 08:49:17 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 10.10.11.1 (Vlan21
) is down: stuck in active
2017 Mar 26 08:49:17 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 172.26.41.2 (Vlan1
) is down: Interface Goodbye received
2017 Mar 26 08:49:18 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 10.10.11.1 (Vlan21
) is up: new adjacency
2017 Mar 26 08:49:19 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 172.26.41.2 (Vlan1
) is up: new adjacency
2017 Mar 26 13:33:45 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 172.26.43.3 (Vlan4
) is down: Interface Goodbye received
2017 Mar 26 13:33:45 SWITCH_A %EIGRP-3-SIA_DUAL: eigrp-100 [5755] (default-base) Route 172.23.68.96/27 stuck-in-active state in IP-
EIGRP(0) 100. Cleaning up
2017 Mar 26 13:33:45 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 10.10.11.1 (Vlan21
) is down: stuck in active
2017 Mar 26 13:33:47 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 172.26.43.3 (Vlan4
) is up: new adjacency
2017 Mar 26 13:33:48 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 10.10.11.1 (Vlan21
) is up: new adjacency
2017 Mar 26 14:00:20 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 172.26.43.3 (Vlan4
) is down: Interface Goodbye received
2017 Mar 26 14:00:21 SWITCH_A %EIGRP-3-SIA_DUAL: eigrp-100 [5755] (default-base) Route 182.23.68.97/32 stuck-in-active state in IP-
EIGRP(0) 100. Cleaning up
2017 Mar 26 14:00:21 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 10.10.11.2 (Vlan21
) is down: stuck in active
2017 Mar 26 14:00:22 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 172.26.43.3 (Vlan4
) is up: new adjacency
2017 Mar 26 14:00:25 SWITCH_A %EIGRP-5-NBRCHANGE_DUAL: eigrp-100 [5755] (default-base) IP-EIGRP(0) 100: Neighbor 10.10.11.2 (Vlan21
) is up: new adjacency
核心交换机B上的log信息也跟这类似
其中
10.10.11.1是核心路由器A的地址；
10.10.11.2是核心路由器B的地址；
172.26.41.1和172.26.43.2是核心交换机A的地址；
172.26.41.2和172.26.43.3是核心交换机B的地址；
网络中配置了eigrp 100和eigrp 200，其中10网段在eigrp 100和200中都宣告了，172.26.41/43网段只是在eigrp 100中宣告。而问题恰恰是出在eigrp 100中；
现在核心交换机与路由器之间的eigrp邻居不稳定，而且核心交换机之间的eigrp邻居也不稳定；
路由器和交换机之间是有安全防火墙的，但是核心交换机之间是光纤直连的，而且光纤是没有问题的；
所以想请教大家：
为什么会出现这样的问题？
之前一直是好的，查看日志都是正常的，就这几天不停的弹出这个信息
还有， [5755]是什么意思？
谢谢大家！

[one-time]

感谢您的提问！稍后会有小伙伴为您解答的！:)

[Mansur]

查查EIGRP-3-SIA_DUAL吧

[a_pan]

maguanghua2013 发表于 2017-3-28 10:39
查查EIGRP-3-SIA_DUAL吧

EIGRP-3-SIA_DUAL这条信息是清空某条路由信息，这条路由是我们分支机构的。
但是我不明白的是，为什么分支机构的一条路由失效然后进行query查询，最终却导致我中心的核心设备之间eigrp邻居反复建立？
而且n7k这种高级设备，应该会有sia防范的吧！

[yssqt5211]

什么鬼？什么鬼？