03-07-2008 02:52 AM - edited 03-03-2019 09:01 PM
Good day.
I have 2 router:Cisco3845 and Cisco3660.
They conected using FrameRelay point-to-point:
Router1#
!
interface Hssi1/0
no ip address
encapsulation frame-relay
no ip mroute-cache
load-interval 30
serial restart-delay 0
cdp enable
frame-relay traffic-shaping
frame-relay interface-dlci 20 switched
class h
frame-relay interface-queue priority 450 100 100 400
!
interface Hssi1/0.17 point-to-point
ip address 192.168.1.29 255.255.255.252
frame-relay class data
frame-relay interface-dlci 17
!
interface Hssi1/0.18 point-to-point
ip address 192.168.137.26 255.255.255.252
frame-relay class voice
frame-relay interface-dlci 18
frame-relay ip rtp header-compression
!
...
!
map-class frame-relay data
frame-relay cir 8400000
frame-relay bc 840000
frame-relay be 840000
frame-relay mincir 98000
frame-relay adaptive-shaping becn
frame-relay fair-queue
frame-relay interface-queue fair queue-limit 32
frame-relay interface-queue priority low
!
map-class frame-relay voice
frame-relay cir 8400000
frame-relay bc 840000
frame-relay be 840000
frame-relay mincir 6028000
frame-relay adaptive-shaping becn
frame-relay fair-queue
frame-relay interface-queue fair queue-limit 32
frame-relay interface-queue priority high
!
router2#
!
interface Hssi2/0
no ip address
encapsulation frame-relay
no ip mroute-cache
load-interval 30
serial restart-delay 0
cdp enable
frame-relay traffic-shaping
frame-relay interface-dlci 20 switched
class h
frame-relay intf-type dce
frame-relay interface-queue priority 350 100 100 400
!
interface Hssi2/0.17 point-to-point
ip address 192.168.1.30 255.255.255.252
frame-relay class data
frame-relay interface-dlci 17
!
interface Hssi2/0.18 point-to-point
ip address 192.168.137.25 255.255.255.252
frame-relay class voice
frame-relay interface-dlci 18
frame-relay ip rtp header-compression
!
...
!
map-class frame-relay data
frame-relay adaptive-shaping becn
frame-relay cir 17900000
frame-relay bc 1790000
frame-relay be 1790000
frame-relay mincir 3804000
frame-relay fair-queue
frame-relay interface-queue priority low
!
map-class frame-relay voice
frame-relay adaptive-shaping becn
frame-relay cir 17900000
frame-relay bc 1790000
frame-relay be 1790000
frame-relay mincir 12000000
frame-relay fair-queue
frame-relay interface-queue priority high
!
When I install AIM-COMPR4 card on both router and write comand:
frame-relay payload-compress data-stream stac on interface Hssi2/0.18 point-to-point and interface Hssi1/0.18 point-to-point
I have nutch packet lost on router2# (Cisco 3660) 3660#sh compress
Hssi2/0 - DLCI: 18
Hardware compression enabled
CSA in slot 0 in use
uncompressed bytes xmt/rcv 112931766/167113853
compressed bytes xmt/rcv 14014362/153973667
Compressed bytes sent: 14014362 bytes 7 Kbits/sec ratio: 8.058
Compressed bytes recv: 153973667 bytes 84 Kbits/sec ratio: 1.085
resyncs 128406
last clearing of counters: 14528 seconds
Additional Stac Stats:
Transmit bytes: Uncompressed = 6351074 Compressed = 6365848
Received bytes: Compressed = 142596663 Uncompressed = 0
Can any one answer: Whats a hapend?
03-07-2008 03:43 AM
Where do you see the errors ?
03-07-2008 07:33 PM
When I input command on router 3660: 2# sh compress I see to much "resyncs", near 128406 in 2 minites. And if I try to ping ip address on router #1 (3845), there near 50% lost pakets.
If I delete command #"frame-relay payload-compress data-stream stac" from FrameRelay interfase, after this if I try to ping ip address on router #1 (3845), there no any lost pakets.
03-08-2008 05:33 AM
If you ping end-to-end (not from routers but from end systems) do you have packet loss with compression enabled ?
03-09-2008 10:42 PM
Yes, I have packet lost, when i ping end-to-end with compression enabled.
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