[cisco-voip] Centralized Unity QOS
Erick Bergquist
erickbe at yahoo.com
Thu Jan 12 11:36:10 EST 2006
Well, FRTS is needed as the other person stated, but
also the Voice-ACL is matching port 2000 traffic which
is signalling for SCCP so should be in the signal
class instead, else all that sccp is getting
priortized also. That may be covered by the other
access-list already but the voice-class is first
listed in policy map and has priority.
Without FRTS, traffic goes out at a 120ms interval and
cisco QoS/SRND recommends to lower that down to your
codec sampling rate which is 10ms or 20ms. You do that
by configuring and enabling FRTS.
Erick
--- "Ortiz, Carlos" <CORTIZ at broward.org> wrote:
> Most of our IPT network is connected via high speed
> Metro Ethernet.
> Only have 2 IPT sites across WAN links so any
> pointers would be
> appreciated. (frame at remotes to ATM at HQ)
>
> I moved this to the top as I noticed some physical
> errors on the remote
> T1.(That's an obvious problem).
>
> Serial0/0/0 is up, line protocol is up
> Hardware is GT96K with integrated T1 CSU/DSU
> MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
> reliability 255/255, txload 8/255, rxload
> 35/255
> Encapsulation FRAME-RELAY IETF, loopback not set
> Keepalive set (10 sec)
> LMI enq sent 611473, LMI stat recvd 611468, LMI
> upd recvd 0, DTE LMI
> up
> LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
> LMI DLCI 0 LMI type is ANSI Annex D frame relay
> DTE
> FR SVC disabled, LAPF state down
> Broadcast queue 1/64, broadcasts sent/dropped
> 1505335/0, interface
> broadcasts 1403643
> Last input 00:00:00, output 00:00:00, output hang
> never
> Last clearing of "show interface" counters 10w0d
> Input queue: 1/75/0/0 (size/max/drops/flushes);
> Total output drops:
> 11188
> Queueing strategy: Class-based queueing
> Output queue: 1/1000/64/11188 (size/max
> total/threshold/drops)
> Conversations 1/26/256 (active/max active/max
> total)
> Reserved Conversations 1/1 (allocated/max
> allocated)
> Available Bandwidth 310 kilobits/sec
> 5 minute input rate 213000 bits/sec, 35
> packets/sec
> 5 minute output rate 50000 bits/sec, 37
> packets/sec
> 187878726 packets input, 997404112 bytes, 0 no
> buffer
> Received 0 broadcasts, 0 runts, 0 giants, 0
> throttles
> 12264 input errors, 12263 CRC, 416 frame, 65
> overrun, 0 ignored,
> 364 abort
> 248917925 packets output, 2303451383 bytes, 0
> underruns
> 0 output errors, 0 collisions, 2 interface
> resets
> 0 output buffer failures, 0 output buffers
> swapped out
> 0 carrier transitions
> DCD=up DSR=up DTR=up RTS=up CTS=up
>
>
>
> 1) ip access-list extended Voice-ACL
> permit tcp any any eq 2000
> permit tcp any eq 2000 any
>
> 2) I have not implemented FR Traffic shaping
>
> 3)Sh run int
> interface Serial0/0/0
> no ip address
> encapsulation frame-relay IETF
> ip route-cache flow
> frame-relay lmi-type ansi
> service-policy output QOS-Policy
> !
> interface Serial0/0/0.90 point-to-point
> description Housing Finance-80QGDA503566
> ip address
> ip pim sparse-dense-mode
> ip ospf message-digest-key 1 md5 7
> frame-relay interface-dlci 90
>
> 4) Class Maps class-map match-all
> Voice-Signal-Class
> match access-group name Voice-Signal-ACL
> class-map match-any Voice-Class
> match access-group name Voice-ACL
> match ip precedence 5
> match dscp ef
>
> 5) Policy Maps
> policy-map QOS-Policy
> class Voice-Class
> priority 768
> class Voice-Signal-Class
> bandwidth 80
> class class-default
> fair-queue
>
> 6) sh frame PVC PVC Statistics for interface
> Serial0/0/0 (Frame Relay
> DTE)
>
> Active Inactive Deleted
> Static
> Local 1 0 0
> 0
> Switched 0 0 0
> 0
> Unused 0 0 0
> 0
>
> DLCI = 90, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE,
> INTERFACE =
> Serial0/0/0.90
>
> input pkts 187232129 output pkts 248281814
> in bytes 967738245
> out bytes 2305236587 dropped pkts 0
> in pkts dropped 0
>
> out pkts dropped 0 out bytes
> dropped 0
> in FECN pkts 0 in BECN pkts 0
> out FECN pkts 0
>
> out BECN pkts 0 in DE pkts 0
> out DE pkts 0
>
> out bcast pkts 1505160 out bcast bytes 209805146
>
> 5 minute input rate 281000 bits/sec, 62
> packets/sec
> 5 minute output rate 67000 bits/sec, 59
> packets/sec
> pvc create time 10w4d, last time pvc status
> changed 10w4d
>
>
> 7) Not doing phone calls between sites but regions
> and locations are
> configured. Codec is G711 and I just changed
> location max audio
> bandwidth to 768 (was 512).
>
>
> -----Original Message-----
> From: Erick Bergquist [mailto:erickbe at yahoo.com]
> Sent: Thursday, January 12, 2006 8:24 AM
> To: Ortiz, Carlos; cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] Centralized Unity QOS
>
>
> What does the ACL Voice-ACL have in it?
>
> How is the frame relay traffic shaping (FRTS) setup,
> if any? Can you post a show run of the T1/frame
> interface and related class-maps for frame? And a
> show
> frame pvc ### from both sides. Post the class-map
> and
> policy-map used for QoS also.
>
> Are there any physical interface errors on either
> routers WAN or LAN interfaces, how is LAN going to
> Unity server? QoS on the Switches? Any errors on the
> switchport connecting to the unity server?
>
> Anyone complaining of quality on phone calls between
> the sites, besides unity traffic?
>
> What codec is used between the sites (are regions
> configured)?
>
> --- "Ortiz, Carlos" <CORTIZ at broward.org> wrote:
>
> > Anyone else have a centralized Unity setup? I
> > occasionally have users
> > across a T1 (Frame) complain that their messages
> are
> > garbled. I have
> > QOS applied to the remote T1 location outbound,
> and
> > outbound from the
> > remote location back to HQ. Basically I am giving
> > priority to port 2000
> > upon exiting the remote router. What else would
> > Unity need prioritized
> > to make sure messages are getting through? Here is
> > the show policy map
> > command. Notice the Voice Class has shows one
> > drop.
> >
> >
> >
> > Class-map: Voice-Class (match-any)
> >
> > 13837884 packets, 1568348294 bytes
> >
> > 5 minute offered rate 0 bps, drop rate 0 bps
> >
> > Match: access-group name Voice-ACL
> >
> > 8214782 packets, 421778111 bytes
> >
> > 5 minute rate 0 bps
> >
> > Match: ip precedence 5
> >
> > 5623104 packets, 1146570431 bytes
> >
> > 5 minute rate 0 bps
> >
> > Match: dscp ef (46)
> >
> > 0 packets, 0 bytes
> >
> > 5 minute rate 0 bps
> >
> > Queueing
> >
> > Strict Priority
> >
> > Output Queue: Conversation 264
> >
> > Bandwidth 768 (kbps) Burst 19200 (Bytes)
> >
> > (pkts matched/bytes matched) 1323128/78512368
> >
> > (total drops/bytes drops) 1/1171
> >
> >
> >
> >
> >
> > Carlos Ortiz
> >
> > Senior Information Technology Specialist
> >
> > Broward County Office of Information Technology
> >
> > Data Communications
> >
> >
> >
> >
> >
> > > _______________________________________________
> > cisco-voip mailing list
> > cisco-voip at puck.nether.net
> >
> https://puck.nether.net/mailman/listinfo/cisco-voip
> >
>
>
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