[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…
Tasman router – Qos configuration
Attention Tasman Networks is now Nortel Networks, so below sample configuration and commends might be slightly different. Please be aware of this. Good luck! 1….
How to obtain Ethernet addresses
Tweet Local NICs: Window 9x – Run the program "winipcfg.exe" Windows NT & Windows 2000 – Run the program "ipconfig.exe /all" Linux – Run the…
Major inbound traffic control problem in real ISP market
Tweet If you have more than two upstream ISP connections, traffic shaping would be one of major consideration for network administrator. Especially, a company has…
BGP troubleshooting – Global routing review by iBGPlay
Tweet BGP(Border Gateway Protocol) is a global routing protocol which is commonly used between domains, well-known example is Internet. BGP troubleshooting is one of hassel…
Welcome to ipBalance
Welcome to Visit ipBalance.com. I hope everyone take a piece of tips, knowledge, information, expertise and whatever you need it for today. Like our slogan,…
Basic CLI Tellabs commands
Tweet Here is basic CLI for Tellabs device. Tellabs_8860> sho ckt vlanid xxxx (det) : To see list of VLANs on the Tellbas by the…
How to configure BGP for Nortel/Tasman router
Tweet BGP configuration for Nortel/Tasman router The following example is just for single point-to-point link. In order to configure Nortel/Tasman router, just copy and paste…
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