04-01-2008 04:29 PM
hi:
we have a QoS issue, we confiured a router 2801, with QoS like this in a CPE:
class-map match-any voip
match dscp ef
match ip rtp 16384 16383
match access-group name voip
match access-group name Signaling
class-map match-any empresarial
match access-group name acl_qos_empresarial
class-map match-any datos
match access-group name acl_qos_internet
match access-group name acl_qos_datos
!
!
policy-map qos_motomex
class voip
set dscp ef
priority percent 25
police 64000 conform-action transmit exceed-action drop
class empresarial
set dscp af41
bandwidth percent 50
random-detect dscp-based
police rate percent 50
conform-action transmit
exceed-action set-dscp-transmit af31
class datos
set dscp af31
bandwidth percent 25
random-detect dscp-based
police rate percent 25
conform-action transmit
exceed-action set-dscp-transmit default
violate-action drop
class class-default
fair-queue
random-detect dscp-based
set dscp default
interface s0/1/0
bandwidth 256
service-policy output qos_motomex
Which the POP3 protocol is in the acl_qos_empresarial Access-list, but for some reason when someone send a large e-mail the bandwidth is congested and versy slow, i put the show policy-map int s0/1/0 and it seems like the class empresarial doesnt work.
Class-map: empresarial (match-any)
976451 packets, 240497189 bytes
30 second offered rate 254000 bps, drop rate 0 bps
Match: access-group name acl_qos_empresarial
976451 packets, 240497189 bytes
30 second rate 254000 bps
QoS Set
dscp af41
Packets marked 976736
Queueing
Output Queue: Conversation 73
Bandwidth 50 (%)
Bandwidth 128 (kbps)
(pkts matched/bytes matched) 24310/19100522
(depth/total drops/no-buffer drops) 2/250/0
exponential weight: 9
mean queue depth: 21
dscp Transmitted Random drop Tail drop Minimum Maximum Mark
pkts/bytes pkts/bytes pkts/bytes thresh thresh prob
af11 0/0 0/0 0/0 32 40 1/10
af12 0/0 0/0 0/0 28 40 1/10
af13 0/0 0/0 0/0 24 40 1/10
af21 0/0 0/0 0/0 32 40 1/10
af22 0/0 0/0 0/0 28 40 1/10
af23 0/0 0/0 0/0 24 40 1/10
af31 8186/11862661 0/0 0/0 32 40 1/10
af32 0/0 0/0 0/0 28 40 1/10
af33 0/0 0/0 0/0 24 40 1/10
af41 86136/14395434 0/0 0/0 32 40 1/10
af42 0/0 0/0 0/0 28 40 1/10
af43 0/0 0/0 0/0 24 40 1/10
cs1 0/0 0/0 0/0 22 40 1/10
cs2 0/0 0/0 0/0 24 40 1/10
cs3 0/0 0/0 0/0 26 40 1/10
cs4 0/0 0/0 0/0 28 40 1/10
cs5 0/0 0/0 0/0 30 40 1/10
cs6 0/0 0/0 0/0 32 40 1/10
cs7 0/0 0/0 0/0 34 40 1/10
ef 0/0 0/0 0/0 36 40 1/10
rsvp 0/0 0/0 0/0 36 40 1/10
default 0/0 0/0 0/0 20 40 1/10
I hope anybody can help me
04-07-2008 11:10 AM
As a good starting point for general QoS design and options have a look at the "Enterprise QoS Solution Reference Network Design Guide Version 3.3"
http://www.cisco.com/application/pdf/en/us/guest/netsol/ns432/c649/ccmigration_09186a008049b062.pdf
In your case you can implement additional classes and asign resources to them. Just keep in mind, that per default only 75% of the interface bandwidth can be used in a policy-map for guaranteed bandwidth.
An example of a modified policy to highlight, what I mean:
class-map match-any AutoQoS-VoIP-RTP-Trust
match ip dscp ef
class-map match-any AutoQoS-VoIP-Control-Trust
match ip dscp cs3
match ip dscp af31
class-map match-all FTP
match protocol ftp
policy-map AutoQoS-Policy-Trust
class AutoQoS-VoIP-RTP-Trust
priority percent 60
class AutoQoS-VoIP-Control-Trust
bandwidth percent 5
class FTP
bandwidth percent 10
class class-default
fair-queue
random-detect
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