[Asterisk-Users] QoS TOS numbers and Cisco IOS
Does anyone know how setting the TOS bits in iax.conf corresponds to the Cisco TOS types? For example, if I set: tos=0x04 in iax.conf, and on the Cisco, I use: access-list 110 permit ip any any tos 4 I can't get the Cisco to match any packets. I've tried various combinations of numbers on both asterisk and the cisco. I've also tried hex to decimal conversion. I just can't get the Cisco to see the TOS bits that I set in iax.conf. Thanks, Noah ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] QoS TOS numbers and Cisco IOS
Does anyone know how setting the TOS bits in iax.conf corresponds to the Cisco TOS types? For example, if I set: tos=0x04 in iax.conf, and on the Cisco, I use: access-list 110 permit ip any any tos 4 I can't get the Cisco to match any packets. I've tried various combinations of numbers on both asterisk and the cisco. I've also tried hex to decimal conversion. I just can't get the Cisco to see the TOS bits that I set in iax.conf. Here's what I'm using. sip.conf: tos=0x18 ;lowdelay ;sets ip tos bits (=lowdelay, throughput) iax.conf: tos=lowdelay Cisco: class-map match-all voice-rtp match access-group 103 access-list 103 permit ip any any tos min-delay access-list 103 permit ip any any tos 12 C1750#show access-list 103 Extended IP access list 103 permit ip any any tos min-delay (2077271 matches) permit ip any any tos 12 (651833 matches) The NAI Sniffer does a better job of showing the bits. Here's two samples for the above: sip packet (tos=0x18): IP: Type of service = 18 IP: 000. = routine IP: ...1 = low delay IP: 1... = high throughput IP: .0.. = normal reliability IP: ..0. = ECT bit - transport protocol will ignore the CE bit IP: ...0 = CE bit - no congestion iax packet (tos=lowdelay): IP: Type of service = 10 IP: 000. = routine IP: ...1 = low delay IP: 0... = normal throughput IP: .0.. = normal reliability IP: ..0. = ECT bit - transport protocol will ignore the CE bit IP: ...0 = CE bit - no congestion Study the above and the bits become very clear. :) ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] QoS TOS numbers and Cisco IOS
tos=0xb8 will set the the packet to be DSCP EF (Cisco likes to use DSCP) Rich Adamson wrote: Does anyone know how setting the TOS bits in iax.conf corresponds to the Cisco TOS types? For example, if I set: tos=0x04 in iax.conf, and on the Cisco, I use: access-list 110 permit ip any any tos 4 I can't get the Cisco to match any packets. I've tried various combinations of numbers on both asterisk and the cisco. I've also tried hex to decimal conversion. I just can't get the Cisco to see the TOS bits that I set in iax.conf. Here's what I'm using. sip.conf: tos=0x18 ;lowdelay ;sets ip tos bits (=lowdelay, throughput) iax.conf: tos=lowdelay Cisco: class-map match-all voice-rtp match access-group 103 access-list 103 permit ip any any tos min-delay access-list 103 permit ip any any tos 12 C1750#show access-list 103 Extended IP access list 103 permit ip any any tos min-delay (2077271 matches) permit ip any any tos 12 (651833 matches) The NAI Sniffer does a better job of showing the bits. Here's two samples for the above: sip packet (tos=0x18): IP: Type of service = 18 IP: 000. = routine IP: ...1 = low delay IP: 1... = high throughput IP: .0.. = normal reliability IP: ..0. = ECT bit - transport protocol will ignore the CE bit IP: ...0 = CE bit - no congestion iax packet (tos=lowdelay): IP: Type of service = 10 IP: 000. = routine IP: ...1 = low delay IP: 0... = normal throughput IP: .0.. = normal reliability IP: ..0. = ECT bit - transport protocol will ignore the CE bit IP: ...0 = CE bit - no congestion Study the above and the bits become very clear. :) ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- Always do right. This will gratify some people and astonish the rest. Mark Twain ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
