02-23-2007 10:38 AM - edited 03-03-2019 03:54 PM
Hello,
I have a need for a hardware compression on 7206VXR. CSA module is EoL long time ago, and we have SA-VAM2+. We don't want to use IPSec or any VPNs, but only hardware assisted compression on PPP or HDLC links. I saw on SA-VAM+ datasheet that it supports LZS compression, but I couldn't find any example where it says how this hardware compression is configured.
Does any one have some guidelines?
Thanks,
Hrvoje
02-23-2007 11:06 AM
It is not as such specific.
It is general configuration same on all devices.
you have to give only one command " comp stac "
Stacker is using LZS algoritham.
Predicater uses RAND algoritham.
You can get more details at following link:::
http://www.cisco.com/univercd/cc/td/doc/product/software/ios111/ca111/csa.htm
Regards,
Dharmesh Purohit
02-24-2007 03:54 AM
Hello,
Well, I've enabled compression on interface...
interface Serial3/1
description To R9
ip address 150.*.*.*.255.255.128
encapsulation ppp
ip route-cache flow
compress lzs
no dce-terminal-timing-enable
And I have SA-VAM2+, and not CSA port-adapters that you've sent a link for it.
Here's show compress...
r6#sh comp
Serial3/1
Software compression enabled
uncompressed bytes xmt/rcv 7630074/7651554
compressed bytes xmt/rcv 361386/349661
Compressed bytes sent: 361386 bytes 0 Kbits/sec ratio: 21.113
Compressed bytes recv: 349661 bytes 0 Kbits/sec ratio: 21.882
1 min avg ratio xmt/rcv 0.691/1.877
5 min avg ratio xmt/rcv 0.913/1.723
10 min avg ratio xmt/rcv 0.941/1.772
no bufs xmt 0 no bufs rcv 0
resyncs 1
... as you can see, compression is done in software.
Here's the details about SA-VAM2+ PA card:
VPN Acceleration Module Version II+ in slot : 2
Statistics for Hardware VPN Module since the last clear
of counters 3116712 seconds ago
0 packets in 0 packets out
0 bytes in 0 bytes out
0 paks/sec in 0 paks/sec out
0 Kbits/sec in 0 Kbits/sec out
0 pkts compressed 0 pkts not compressed
0 bytes before compress 0 bytes after compress
1.0:1 compression ratio 1.0:1 overall
7463 commands out 7463 commands acknowledged
Last 5 minutes:
0 packets in 0 packets out
0 paks/sec in 0 paks/sec out
0 bits/sec in 0 bits/sec out
HSP details:
hsp_operations : 7478 hsp_sessions : 1
thanks,
Hrvoje
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