Question

Adtran QoS

Asked by: simprix

I have a adtran 1335. I was wondering if my QoS looks to be setup properly for VOIP. The phones are Polycom with a CoS of 5. The dscp on this phone is 40. We have a T1 for the wan and have SIP trunks from bandwidth.com. Attached is the config. Some information has been removed. 

!
!
! ADTRAN, Inc. OS version 16.02.00.E
! Boot ROM version 15.01.00
! Platform: NetVanta 1335 PoE, part number 1700525E2
! Serial number LBADTN0738AF412
!
 
!
clock timezone -5-Eastern-Time
clock no-auto-correct-DST 
!
ip subnet-zero
ip classless
 
ip routing
!
 
!
 
!
ip name-server 192.168.1.50 64.186.63.132 64.141.177.150 
!
!
no ip route-cache express
!
no auto-config
!
event-history on
no logging forwarding
no logging email
logging email priority-level info
!
no service password-encryption
!
 
!
banner motd #
#
!
!
ip firewall
no ip firewall alg msn
no ip firewall alg h323
no ip firewall alg sip
!
!
!
!
!
!
!
!
dot11ap access-point-controller
!
!
!
ip dhcp-server excluded-address 10.10.10.1 10.10.10.99
ip dhcp-server excluded-address 192.168.1.1 192.168.1.49
ip dhcp-server excluded-address 192.168.1.51 192.168.1.99
ip dhcp-server excluded-address 192.168.2.1 192.168.2.99
!
ip dhcp-server pool "DATA"
  network 10.10.10.0 255.255.255.0
  dns-server 208.67.222.222 208.67.220.220
  netbios-node-type h-node
  default-router 10.10.10.1
!
ip dhcp-server pool "PBXTRA"
  netbios-node-type h-node
  default-router 192.168.1.1
  host 192.168.1.50 255.255.255.0
  hardware-address 00:19:d1:51:e0:f8 ethernet
!
ip dhcp-server pool "VOICE"
  network 192.168.1.0 255.255.255.0
  dns-server 192.168.1.50
  netbios-node-type h-node
  default-router 192.168.1.1
!
ip dhcp-server pool "Wireless"
  network 192.168.2.0 255.255.255.0
  dns-server 208.67.222.222 208.67.220.220
  netbios-node-type h-node
  default-router 192.168.2.1
!
!
!
ip crypto
!
crypto ike client configuration pool Roadwarrior
  ip-range            10.10.9.1         10.10.9.254      
  dns-server          208.67.222.222    208.67.220.220   
!
 
qos map qos-voip-map 20
  match dscp 46
  match precedence 5
  match dscp 40
  priority 926
  set dscp 26
qos map qos-voip-map 21
  match list qos-voip-acl
  set dscp 26
!
qos cos-map 1 0 1
qos cos-map 2 2 3
qos cos-map 3 4 6 7
qos cos-map 4 5
qos queue-type wrr 25 25 25 expedite
!
 
qos dscp-cos 0 8 16 24 32 40 48 56 to 0 1 2 3 4 5 6 7
 
!
!
!
!
vlan 1
  name "Default" 
!
vlan 100
  name "VOICE" 
!
vlan 200
  name "Wireless" 
!
interface switchport 0/1
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/2
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/3
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/4
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/5
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/6
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/7
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/8
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/9
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/10
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/11
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/12
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/13
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/14
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/15
  spanning-tree edgeport
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/16
  spanning-tree edgeport
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/17
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/18
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/19
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/20
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/21
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/22
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/23
  no shutdown
  switchport mode trunk
  qos trust cos
!
interface switchport 0/24
  no shutdown
  switchport mode trunk
  switchport trunk native vlan 100
  qos trust cos
!
!
interface gigabit-switchport 0/1
  no shutdown
!
interface gigabit-switchport 0/2
  no shutdown
!
!
!
interface vlan 1
  ip address  10.10.10.1  255.255.255.0 
  access-policy Private
  ip route-cache express
  no shutdown
!
interface vlan 100
  ip address  192.168.1.1  255.255.255.0 
  access-policy Private
  ip route-cache express
  no shutdown
!
interface vlan 200
  ip address  192.168.2.1  255.255.255.0 
  access-policy Private
  ip route-cache express
  no shutdown
!
!
interface t1 1/1
  description UTMI_T1
  tdm-group 1 timeslots 1-24 speed 64
  no shutdown
!
interface t1 1/2
  clock source through
  shutdown
!
interface ppp 1
 
  access-policy Public
  crypto map VPN
  qos-policy out qos-voip-map
  no shutdown
  cross-connect 1 t1 1/1 1 ppp 1
!
!
 
!
interface dot11ap 1/1 radio-type 802.11bg
  no shutdown
!
!
 
!
interface dot11ap 1/2 radio-type 802.11a
  shutdown
!
!
interface dot11ap 1/2.1
  security mode none
  shutdown
!
!
!
!
!
!
!
!
ip access-list standard MATCHALL
  permit any
!
ip access-list standard nat
  remark Internet Connection Sharing
  permit any
!
!
ip access-list extended aclppp1QosWizSignal21
  permit udp any  any eq 5060   
  permit tcp any  any eq 5060  
!
ip access-list extended pbxtra
  remark SSH PBXTRA
  permit tcp any  any eq ssh   log
  permit tcp any  any eq 5060   log
  permit udp any  any eq 5060    log
  permit tcp any  any range 1024 64000   log
  permit udp any  any range 1024 64000    log
!
ip access-list extended qos-voip-acl
  permit udp any  any eq 5060   
  permit tcp any  any eq 5060  
!
ip access-list extended self
  remark Traffic to NetVanta
  permit ip any  any     log
!
ip access-list extended telnet-to-netvanta
  permit tcp any  any eq telnet  
  permit icmp any  any    
  permit tcp any  any eq www  
  permit tcp any  any eq https  
  permit udp any  any eq snmp    log
!
ip access-list extended VPN-10-vpn-selectors
  permit ip 10.10.10.0 0.0.0.255  10.10.9.0 0.0.0.255    
!
ip policy-class Private
  allow list VPN-10-vpn-selectors stateless
  allow list self self
  nat source list nat interface ppp 1 overload
  allow list MATCHALL self
!
ip policy-class Public
  allow reverse list VPN-10-vpn-selectors stateless
  allow list telnet-to-netvanta self
  nat destination list pbxtra address 192.168.1.50
!
!
!
ip route 0.0.0.0 0.0.0.0 ppp 1
!
ip tftp server
no ip tftp server overwrite
ip http server
ip http secure-server
ip http language English
ip snmp agent
no ip ftp server
ip ftp server default-filesystem flash
no ip scp server
no ip sntp server
!
!
!
!
!
 
!
!
!
!
line con 0
  login
!
line telnet 0 4
  login
 
  no shutdown
line ssh 0 4
  login local-userlist
  no shutdown
!
!
!
!
!
end

                                  
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Asked On
2007-11-22 at 05:21:44ID22977483
Tags

adtran

,

1335

,

qos

Topics

Voice Over IP

,

Miscellaneous Networking

,

Network Routers

Participating Experts
2
Points
250
Comments
6

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Answers

 

by: Elixir2Posted on 2007-11-24 at 06:24:20ID: 20342739

I'm so sorry I can't help. However, I have a similar problem. I have a Adtran NetVanta 3430 (see EE:22979333). I am going to study your QoS map to see if I can learn how to fix my problem. If you have any good Adtran AOS resources, please post. Thanks!

 

by: rpalmeira22Posted on 2007-11-26 at 14:22:50ID: 20353744

So couple of things....
1. You're logging all the firewall info which can be good but unnecessary if you have a lot of traffic.
2. verify that the ISP you have is actually going to care about QoS settings (you have it set to DSCP 26 belo) because many won't. it doesn't hurt anything to mark it but you may be doing it unnecessarily depending on your T1 Internet provider.
3. You're expediting the voice traffic (RTP) but you may also want to consider marking your signalling traffic (SIP) differently. Again depends on what your provider will recognize.
4. If you're only using precedence of 5 then your QoS maps are fine
5. check the codecs on your phone. with only a single T1, and only 926 K prioritized you're looking at a pretty low simaltaneous call volume if you're running G.711

 

by: rpalmeira22Posted on 2007-11-26 at 14:27:08ID: 20353783

sorry one other thing, and its fairly minor but sort of an old habit that I don't generally use VLAN 1 for anything besides (maybe) management. Not really an issue, just a suggestion. The catch is that if you do change it, you'll need to go around to each of the eth 0/X ports and give then a native vlan as well so more config work.

also, I can't remember if it was the 1335 or the 1355 but check to see if you can use the "media-gateway ip primary" command on any L3 interface that will carry voice traffic (so PPP 1 for example) as Adtran uses it for flagging and prioritizing voice traffic.

 

by: simprixPosted on 2007-11-26 at 15:12:11ID: 20354112

Not sure of my ISP is looking for the DSCP value. Im just trying to make sure that all voice traffic has priority when it leaves my router.

 

by: rpalmeira22Posted on 2007-11-26 at 17:57:36ID: 20354827

whatever traffic is marked a priority 5 will leave the router first, if that's voice traffic then your setup is fine. don't forget to check on your signalling. if a sip packet gets dropped because you're saturating the priority queue you could have issues. Also, check traffic at the endpoints to make sure it's marking traffic properly, just do a port mirror and check to make sure packets coming from the phones are marking properly. I don't remember if it was Polycom or Aastra, maybe somebody else, but there was an issue with an older firmware version not marking packets properly. but yeah, any traffic marked as priority five will get tagged with dscp value of 26 and will get sent out first.

 

by: simprixPosted on 2007-11-26 at 18:04:41ID: 20354842

They are a polycom. They are marking it with a cos of 5. Thanks alot.

20120131-EE-VQP-002

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