[c-nsp] QoS Cisco Serie 800 and 1800
Alejandro Selios
aselios at gmail.com
Sat Nov 21 14:50:54 EST 2009
Hi Dave,
I've been tried configure HQF but runing 12.4T IOS and didn't work. I'm
going to get the 15.0 IOS and I'll try again with HQF.
Thanks
2009/11/21 Dave Cardwell <dave.cardwell1 at googlemail.com>
> Hi Alejandro,
>
> If you can run 15.0 code you may want try HQF, rather then CBWFQ.
>
> There is a good description at the link below:
>
> http://blog.ioshints.info/2009/11/first-hqf-impressions-excellent-job.html?utm_source=feedburner&utm_medium=RSS&utm_campaign=IOS+hints+Feed
>
> Hope it helps,
> Dave
>
> On Fri, Nov 20, 2009 at 5:51 PM, Alejandro Selios <aselios at gmail.com>
> wrote:
> > Thanks Clue for your quick answer.
> >
> > In the original mail I didn't mention it, but I applied the
> service-policy
> > to the PVC like you said. (Below attach the complete configuration for
> both
> > cases).
> >
> > Another issue is that Cisco's 800 and 1800 series routers only have 2
> level
> > of prioritization. Cisco's routers allow to configure a priority queue
> and
> > CBWFQ (class base weighted fair queue) but does not has the flexibly to
> > specify a scheduler policy or any other queuing policies.
> >
> > I think that weighted fair queue will leave as dead end, I think the way
> to
> > follow is a strict priority queuing with a customizable scheduler policy.
> > I'm looking for a way to do that in Cisco's routers.
> >
> > I'll appreciate any help you can give me.
> >
> >
> > Cisco 878/877
> > --------------------------------------
> > class-map match-all GOLD
> > match access-group name GOLD_ACL
> > class-map match-all SILVER
> > match access-group name SILVER_ACL
> >
> >
> > policy-map QoS_POLICY
> > class GOLD
> > priority percent 25
> > police cir percent 25 pir percent 25
> > set dscp ef
> > class SILVER
> > set dscp af41
> > bandwidth percent 50
> > shape average percent 75
> > class class-default
> > fair-queue
> > set dscp af12
> > bandwidth percent 25
> >
> > interface ATM0
> > no ip address
> > load-interval 30
> > no atm ilmi-keepalive
> > max-reserved-bandwidth 100
> > !
> > interface ATM0.35 point-to-point
> > description INTERFAZ DE ACCESO
> > ip address x.x.x.x 255.255.255.254
> > atm route-bridged ip
> > pvc 0/35
> > vbr-nrt 576 576
> > oam-pvc 0
> > encapsulation aal5snap
> > service-policy output QoS_POLICY
> >
> >
> >
> > Cisco 1841
> > --------------------------------------
> >
> > class-map match-all GOLD
> > match access-group name GOLD_ACL
> > class-map match-all SILVER
> > match access-group name SILVER_ACL
> >
> >
> > policy-map QoS_POLICY
> > class GOLD
> > priority percent 25
> > police cir percent 25 pir percent 25
> > set dscp ef
> > class SILVER
> > set dscp af41
> > bandwidth percent 50
> > shape average percent 75
> > class class-default
> > fair-queue
> > set dscp af12
> > bandwidth percent 25
> >
> > policy-map SHAPER
> > class class-default
> > shape average 1000000
> > service-policy QoS_POLICY
> > !
> > !
> > !
> > interface FastEthernet0/0
> > description INTERFAZ DE ACCESO
> > no ip address
> > load-interval 30
> > duplex auto
> > speed auto
> > !
> > interface FastEthernet0/0.100
> > encapsulation dot1Q 100
> > ip address x.x.x.x 255.255.255.252
> > service-policy output SHAPER
> >
> >
> >
> > Thanks,
> >
> >
> >
> >
> >
> >
> > 2009/11/20 Clue Store <cluestore at gmail.com>
> >
> >> Hi Alejandro,
> >>
> >> If you're doing this with xDSL, you will have to apply the
> service-policy
> >> to the PVC for outgoing to make it work. Here's an example of what I
> use. I
> >> know your class-maps and policy-maps are different, but you should be
> able
> >> to get the point.
> >>
> >> class-map match-any VoIP
> >> match ip rtp 16384 16383
> >> match access-group name VoicePorts
> >>
> >> policy-map Voice
> >> class VoIP
> >> priority percent 75
> >>
> >> class class-default
> >> fair-queue
> >>
> >>
> >> interface ATM0.1 point-to-point
> >> pvc 1/100
> >> vbr-rt 384 384
> >> tx-ring-limit 3
> >> service-policy output Voice
> >>
> >>
> >> ip access-list extended VoicePorts
> >> permit udp any host x.x.x.x range 22026 62025
> >> permit udp any host x.x.x.x range 22026 62025
> >>
> >>
> >>
> >>
> >> HTH,
> >> Clue
> >>
> >> On Fri, Nov 20, 2009 at 9:26 AM, Alejandro Selios <aselios at gmail.com
> >wrote:
> >>
> >>> Hi,
> >>>
> >>> I want to configure QoS on a Cisco's 800 and 1800 series router and I
> >>> couldn't make it work the way I want. I've configured three classes of
> >>> service called GOLD, SILVER and BRONZE, designed for low latency, low
> loss
> >>> and data respectively.
> >>>
> >>> * I want the GOLD class to have a maximum bandwidth of 25%, even if
> there
> >>> is
> >>> traffic in the other classes.
> >>>
> >>> * The SILVER class has a minimum bandwidth of 50% and, if there's no
> >>> traffic
> >>> in the GOLD queue, I want this class to take the available bandwidth
> which
> >>> is not used by the GOLD class. Thats means that the SILVER class has a
> 50%
> >>> of assured bandwidth and can increase to a maximum of 75% of the total
> >>> bandwidth.
> >>>
> >>> * The BRONZE class has no assured bandwidth and can only take the
> >>> bandwidth
> >>> which is not used for the other classes.
> >>>
> >>> The problem is that with Cisco's QoS tools I have not reached the
> desired
> >>> goal. I have tried with different configurations and IOS and I couldn't
> >>> get
> >>> any successful result . Below I attach the policy configuration that I
> >>> have
> >>> tried (just to give you an example).
> >>>
> >>> Is there any way in which I can achieve the behavior that was described
> >>> above?.
> >>>
> >>> Thanks in advance.
> >>>
> >>>
> >>> Standard Configuration
> >>> -------------------------------------
> >>>
> >>> policy-map QoS_POLICY
> >>> class GOLD
> >>> priority percent 25
> >>> police cir percent 25 pir percent 25
> >>> set dscp ef
> >>> class SILVER
> >>> set dscp af41
> >>> bandwidth percent 50
> >>> shape average percent 75
> >>> class class-default
> >>> fair-queue
> >>> set dscp af12
> >>> bandwidth percent 25
> >>>
> >>>
> >>>
> >>>
> >>> Hierarchical Configuration
> >>> ---------------------------------------------
> >>> policy-map GOLD+SILVER
> >>> class GOLD
> >>> priority percent 33
> >>> police rate percent 33
> >>> class class-default
> >>> fair-queue
> >>>
> >>> policy-map QOS
> >>> class GOLD+SILVER
> >>> shape average percent 75
> >>> bandwidth percent 75
> >>> service-policy GOLD+SILVER
> >>> class class-default
> >>> fair-queue
> >>>
> >>>
> >>> Note: This configuration was applied in a subinterface (xDSL, 802.1q
> >>> ethernet) and for the outgoing traffic.
> >>> _______________________________________________
> >>> cisco-nsp mailing list cisco-nsp at puck.nether.net
> >>> https://puck.nether.net/mailman/listinfo/cisco-nsp
> >>> archive at http://puck.nether.net/pipermail/cisco-nsp/
> >>>
> >>
> >>
> > _______________________________________________
> > cisco-nsp mailing list cisco-nsp at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/cisco-nsp
> > archive at http://puck.nether.net/pipermail/cisco-nsp/
> >
>
More information about the cisco-nsp
mailing list