5 8 月, 2009
问题：
Customer have two 2500W power, now customer want to replace the 6000W power.
Customer want to check whether impact the business when replace the 6000W.
解决：
If customer have power usage exceeds need the downtime, as some of the linecards will go down due to lack of power. In case you have less than 2500w usage on the router, then follow the below steps.
1. have your power supply in redundant mode.
2. pull the power supply which is not active
完整阅读
27 7 月, 2009
环境：
1. CISCO7609
2. Two engine for WS-SUP720-3BXL
问题：
客户配置了5条静态路由负载均衡，状态及流量都比较正常，但当客户加了第6条静态路由的时候，发现有一个口的流量与其他相比少了很多。
30 second input rate 349662000 bits/sec, 141978 packets/sec |
30 second output rate 330499000 bits/sec, 71334 packets/sec |(9/1)
-------------------------------------------------------------|----
30 second input rate 363785000 bits/sec, 139117 packets/sec |
30 second output rate 634835000 bits/sec, 134002 packets/sec |(9/9)
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24 11 月, 2008
环境：
76做汇聚层交换机。
问题：
客户在2口上开启3层功能，应用单臂路由来提供vlan间的路由。当配置到封装类型时报错：
C7609-2(config-subif)#interface GigabitEthernet1/1.1
C7609-2(config-subif)# encapsulation dot1Q 11
Command rejected: VLAN 11 cannot be allocated. VLANs 1-1005 are VTP VLANs
VTP mode is client or server and must be changed to Transparent to use VLANs 1-1005
C7609-2(config-subif)# ip address 10.171.0.93 255.255.255.252
% Configuring IP routing on a LAN subinterface is only allowed if that
subinterface is already configured as part of an IEEE 802.10, IEEE 802.1Q,
or ISL vLAN.
解决问题：
在交换机上，在2层端口上启用3层功能是受限制的，根据版本及硬件不同，限制也有所差别。现在拿65和76举例。
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4 6 月, 2008
环境：
7609做接入层交换机，下联DSLAM，上联核心，其余的是2层应用。
问题：
Console 有log告警，并且只出现几次，分别是module8 和module9，具体告警如下所示：
%PM-SP-STDBY-4-LIMITS: The number of vlan-port instances on module 8 exceeded the recommended limit of 1800
%PM-SP-4-LIMITS: The number of vlan-port instances on module 8 exceeded the recommended limit of 1800
%PM-SP-STDBY-4-LIMITS: The number of vlan-port instances on module 9 exceeded the recommended limit of 1800
完整阅读