Re: [OSL | CCIE_Voice] Catalyst 6500 QoS Marking
Hmm, thanks for the complicated explaination :-p Also, just wondering can I reuse the policer aggregate VVLAN-VOICE for another acl? Example: set qos acl ip IPPHONE dscp 46 aggregate VVLAN-VOICE udp 177.1.101.0 255.255.255.0 any range 16384 32767 set qos acl ip VOICE dscp 46 aggregate VVLAN-VOICE udp 177.1.102.0<http://177.1.101.0/> 255.255.255.0 any range 16384 32767 Thanks and best regards. On Sat, Mar 15, 2008 at 12:00 AM, Juan Lopez Hernandez -X (jlopezhe - IBM - INS at Cisco) <[EMAIL PROTECTED]> wrote: > burst size for Cat6K uses a Tc of .25ms. Hence Bc = rate x 0.00025 or > [1518x8], whichever is the greated value. > The 1518*8 comes from the worst case MTU for ethernet, expressed in > bits/s. Round it up to 13Kbps. If burst size would be smaller, all > ethernet traffic would be policed, which is not the intention. > ps: cat6k always uses Kbps as units > > cheers, > Juan > > > -- > *From:* [EMAIL PROTECTED] [mailto: > [EMAIL PROTECTED] *On Behalf Of *ccievoice1 > *Sent:* Friday, March 14, 2008 4:48 PM > *To:* CCIE Maillist > *Subject:* [OSL | CCIE_Voice] Catalyst 6500 QoS Marking > > ! > ! > > set qos cos-dscp-map 0 8 16 24 32 46 48 56 > set qos policed-dscp-map 0,24,26,46:8 > set qos policer aggregate VVLAN-VOICE rate 128 burst 8000 drop > set qos policer aggregate VVLAN-CALL-SIGNALING rate 32 burst 8000 policed-dscp > > set qos acl ip IPPHONE dscp 46 aggregate VVLAN-VOICE udp 177.1.101.0 > 255.255.255.0 any range 16384 32767 > set qos acl ip IPPHONE dscp 24 aggregate VVLAN-CALL-SIGNALING tcp 177.1.101.0 > 255.255.255.0 any range 2000 2002 > > commit qos acl IPPHONE > > set port qos 2/45 trust-device ciscoipphone > set qos acl map IPPHONE 2/45 > ! > ! > > Question: on policer aggregate, burst is to specifies the burst size; valid > values are 1 to 32000 kilobits. So what value do we use? And how to calculate > the value? > > Thanks. > >
Re: [OSL | CCIE_Voice] Catalyst 6500 QoS Marking
burst size for Cat6K uses a Tc of .25ms. Hence Bc = rate x 0.00025 or [1518x8], whichever is the greated value. The 1518*8 comes from the worst case MTU for ethernet, expressed in bits/s. Round it up to 13Kbps. If burst size would be smaller, all ethernet traffic would be policed, which is not the intention. ps: cat6k always uses Kbps as units cheers, Juan From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of ccievoice1 Sent: Friday, March 14, 2008 4:48 PM To: CCIE Maillist Subject: [OSL | CCIE_Voice] Catalyst 6500 QoS Marking ! ! set qos cos-dscp-map 0 8 16 24 32 46 48 56 set qos policed-dscp-map 0,24,26,46:8 set qos policer aggregate VVLAN-VOICE rate 128 burst 8000 drop set qos policer aggregate VVLAN-CALL-SIGNALING rate 32 burst 8000 policed-dscp set qos acl ip IPPHONE dscp 46 aggregate VVLAN-VOICE udp 177.1.101.0 255.255.255.0 any range 16384 32767 set qos acl ip IPPHONE dscp 24 aggregate VVLAN-CALL-SIGNALING tcp 177.1.101.0 255.255.255.0 any range 2000 2002 commit qos acl IPPHONE set port qos 2/45 trust-device ciscoipphone set qos acl map IPPHONE 2/45 ! ! Question: on policer aggregate, burst is to specifies the burst size; valid values are 1 to 32000 kilobits. So what value do we use? And how to calculate the value? Thanks.
[OSL | CCIE_Voice] Catalyst 6500 QoS Marking
! ! set qos cos-dscp-map 0 8 16 24 32 46 48 56 set qos policed-dscp-map 0,24,26,46:8 set qos policer aggregate VVLAN-VOICE rate 128 burst 8000 drop set qos policer aggregate VVLAN-CALL-SIGNALING rate 32 burst 8000 policed-dscp set qos acl ip IPPHONE dscp 46 aggregate VVLAN-VOICE udp 177.1.101.0 255.255.255.0 any range 16384 32767 set qos acl ip IPPHONE dscp 24 aggregate VVLAN-CALL-SIGNALING tcp 177.1.101.0 255.255.255.0 any range 2000 2002 commit qos acl IPPHONE set port qos 2/45 trust-device ciscoipphone set qos acl map IPPHONE 2/45 ! ! Question: on policer aggregate, burst is to specifies the burst size; valid values are 1 to 32000 kilobits. So what value do we use? And how to calculate the value? Thanks.
