Compression

[ccnguy]

I want to enable compression on a T1 circuit between 2 routers - encap hdlc. Not sure whether to use stacker or predictor. Which one is usually used and where can I find the correct commands?

 

[lambent]

Predictor only supports PPP and LAPB

Use stacker, command is:

!
interface s0
encap hdlc
compress stac
!

 

[ccnguy]

Are there any kinds of data that this type of compression technique would not work well with? What are the disadvantages of using compression?

 

[lambent]

You may have interest in this Cisco technote:

http://www.cisco.com/en/US/tech/tk713/tk802/technologies_tech_note09186a00801b3b86.shtml

 

[ccnguy]

I read that the Cisco 2600 router uses Data Compression AIM(Advanced Integration Module slot) which supports 8Mbps of compressed data throughput without imposing additional traffic latency. So hardware may be needed?

 

[lambent]

It depends on your requirement on the performance and your budgets. You can test the performance without the AIM first to see if you're satisfied.