Refer to 3560 output drop increase issue.
All voice in one vlan 36.
And have some data vlan.
Follow are topology(summary):
——————————-
+-----------+ +-----------+
| 6509 | | 6509 |
+-----\-----+ +-----/-----+
\ //
\ /
Read the rest of this entry »
由于最近处理一个静态BFD的问题。
在此贴出BFD的配置及相关的资源链接供大家参考。
关于相关BFD协议的内容和他的模式问题，本想用dynamips加12.2(33)SRC来做测试并抓包分析，但发现一配置BFD，模拟器就crash，先后更换了SRD，SRE及更换了NPE-G1和 NPE-G2，现象一样存在。毕竟只是模拟器呀。。。。。。
所以关于相关BFD的更进一步分析，只能等到手头有设备时直接SPAN了。
注：VRF下的静态BFD，只从12.2(33)SRC才开始支持，支持平台为7600和7200。
6500需要在12.2(33)SXI才支持。 Read the rest of this entry »
PC(modem)———-ISDN———(E1 Pri)2811(PVDM2)
network-clock-participate wic 0 network-clock-select 1 E1 0/0/0 ! isdn switch-type primary-net5 ! chat-script offhook1 "" "ATH1" OK \c chat-script callback1 ABORT ERROR ABORT BUSY "" "ATZ" OK "ATDT \T" TIMEOUT 30 CONNECT \c ！ interface Serial0/0/0:15 ip unnumbered Loopback0 encapsulation ppp dialer rotary-group 1 Read the rest of this entry »
From Show diag:
—————————————————————————–
CISCO2821
HWIC-1CE1T1-PRI
PVDM2-36DM
From Show Run
—————————————————————————–
network-clock-participate wic 1 ! modem country v12 sweden dot11 syslog ip source-route ! controller E1 0/1/0 Read the rest of this entry »
As everyone knows, the NTP is sync clock protocol.
That knowledge less other protocol.
But there are some attention:
——————————————
1. When you config more than one server in customer network.
Please don’t use the same stratum.
Base on the stratum, refer to
http://www.cisco.com/en/US/docs/ios/netmgmt/command/reference/nm_10.html#wp1093957
If customer use same stratum, it would instability and lost sync.
