Maybe I am the worst network engineer in the world or maybe I am unlucky.
Recently, I made an upgrade on some of 6509 switches. I bought totally new 6509-E system including chassis, fan, power, and some new line cards. I also insert my fiber line cards that I used in old 6509 with supervisor 2.
Everything was fine until I checked modules status with “show module” command. Switch was up, new line cards were functioning, but my old WS-X6516-G...
There are two issues that you have to be aware of when you are evaluating RPS solutions for fixed Cisco catalyst switches. Cisco has a product named Cisco Redundant Power System 2300 (RPS 2300) for the non-modular switch series like Catalyst 3560, Catalyst 3750. This is the successor of old Cisco Redundant Power System 675 (RPS 675).
You have only one bullet in your gun when you have an RPS
Switch draw power from RPS after power fail
You can prov...
NetFlow is a must have technology suitable for mid size to enterprise companies. Nowadays, it has become an IEEE standard as IPFIX (Internet Protocol Flow Information eXport). We will be able to find NetFlow technology support on any brand in the market soon. However, which devices of Cisco itself supports NetFlow technology?
All routers including the oldest (e.g. Cisco 2500 series) and smallest (e.g. Cisco 800 series) support NetFlow. Some functions...
On the catalyst 6500 switches, the maximum number of HSRP group IDs are limited to 16 in the Supervisor Engine 2-based systems. This limit is 256 in all other older and newer systems.If you try to create a new standby group after this limit you recieve
More than 16 standby groups not supported in this platform.
message.Cisco says that this is a per interface limit. So, you can use same ID in several interfaces.
You can find the details on “HSRP Grou...
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