Author: Chris
Do you have BGP or Routing issue?
Tweet Do you have routing issue or BGP problem? Looking for traffic shaping on BGP peers? You might visit www.showipbgp.com site. There are many BGP…
BGP error with “by remote host, open active delayed 27076ms (35000ms max, 28% jitter)”
Tweet Have you seen below error? When you are onfiguring BGP. "Oct 5 10:10:20.012: BGP: 129.186.17.1 open failed: Connection refused by remote host, open active…
BGP troubleshooting – Prepanding AS, but not affected?
Tweet Here is handy BGP troubleshooting tip you might interesting. I spoke to one of my customer…. He said he had changed BGP configuration last…
Free CMS Tools
The collection of free CMS (Contents Management System) tools and software for network administrator or network consultant. It is almost commercial grade product. i Joomla…
Free Data Recovery Tools
The collection of free data recovery tools and software for network administrator or network consultant. It is almost commercial grade product. i PC Inspector File…
Free Data Backup Tools
The collection of free Data Backup tools and software for network administrator or network consultant. It is almost commercial grade product. i Cobian Backup Cobian…
BGP aggregate-address command
Tweet When the aggregate-address command is used within BGP routing, the aggregated address is advertised, along with the more specific routes. The exception to this…
[Cisco tips] using exclude option
Tweet Many people know "include" option that is useful to extract some information from entire configuration. But I don’t think many people use "exclude" option…
Telco circuit patterns tests and results
When you are testing WAN links, applying different patterns would be good idea to isolate an issue. Here is output of each testing pattern. 0x0000…
What is gratuitous ARP?
Tweet A gratuitous ARP is an ARP broadcast-type of packet that is used to makre sure that no other device on the network has the…
Troubleshooting example using Splunk – Syslog
Tweet Splunk was configured as a Syslog server on my lab network for few weeks now. Since I modified few parameters on service side and…
What backdoor command does ?
Tweet Backdoor only makes the IGP learned route the preferred route. To specify a backdoor route to a BGP border router that will provide better…
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