Month: July 2009
[Wireshark] Display filter expression syntax tips
Tweet Wireshark‘s display filter expression syntax is quite useful. The filter is applied to a capture file, when the file has been created. It only…
Easily track SNMP MIB-II from your desktop using dVUE5X
Tweet I would like to introduce a little gadget today for network administrators or someone is interesting about pulling information from your network gears. Last…
Internet Speed Issue – Bandwidth VS. Throughput
Most of Internet users (I met) are a bit confused about meaning and definition of Bandwidth and Throughput . If you are non-computer person or…
FCS errors on Overture Networks ISG by misconfig
Tweet Overture Networks is one of performed vendor on Carrier Ethernet services market. Few big ISPs are using their product. Recently, I met packet lost…
How to upgrade firmware for Enterasys switches
Tweet As you know Enterasys was named Cabletron company long long time ago. I guess more than decade. Cabletron was one of strong vendor on…
Basic JUNOS CLI commands for Juniper router and switches
Here is a list of basic JUNOS commands. Enjoy ! Basic Interfaces M Series and T series : fe-2/1/0fe: Type of Interface2 : FPC1: PIC0…
[Cisco] Options and functions that are available from the CLI
Tweet The following table describes the different shortcut options and functions that are available from the Cisco Command Line Interface. Keystroke Function Ctrl-A Jumps to…
[Cisco tips] Configuring CDP(Cisco Discovery Protocol)
Tweet CDP is propritary protocol by Cisco. It is enable as default on most of interface, but few exception such as ATM interface. This protocol…
Basic CLI commands for Cisco router
Tweet Here is a list of basic Cisco’s commands. Enjoy ! access-class Applies a standard IP access list to a VTY line access-list Creates…
[Cisco] Error message ‘disabled analyzed idbs-rem’ on Cisco 7000
Tweet If you got error message below from your system/Cisco 7000 series router. "Board is disabled analyzed idbs-rem" Try the following command to bring it…
[Cisco] How to Check CEF (Cisco Express Forwarding)
Tweet Cisco Express Forwarding (CEF) is advanced Layer 3 IP switching technology. CEF optimizes network performance and scalability for networks with large and dynamic traffic…
[Cisco] High Process CPU time on Cisco router
Tweet When you see a latency or slow response to your destination, check your router CPU time. If it’s high, it means something abnormal or…
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