All,
I'm working on a 7204 router with multiple FR DLCIs, one for internal WAN and the other for Internet access (using VFR for routing table separation, T3 physical/18Mbps CIR). We have priority queing enabled via map-class on the subinterfaces and we aren't seeing drops on the subinterface queues. We are still seeing drops on the serial interface, though, and some voice quality complaints. My question is, should we lower the CIRs manually to match, attempt to add the service policy to the main interface (dumping FRTS), or do something else? Since I don't have visibility to what's being dropped (can't show policy-map int) I'm not sure if the drop behavior is what I'm expecting. Any help is appreciated.
Serial1/0 is up, line protocol is up
Hardware is M1T-T3+ pa
Description: 4032434
MTU 4470 bytes, BW 18432 Kbit, DLY 200 usec,
reliability 255/255, txload 16/255, rxload 42/255
Encapsulation FRAME-RELAY IETF, crc 16, loopback not set
Keepalive set (10 sec)
Restart-Delay is 0 secs
Broadcast queue 0/256, broadcasts sent/dropped 0/0, interface broadcasts 0
Last input 00:00:01, output 00:00:00, output hang never
Last clearing of "show interface" counters 6d20h
Input queue: 0/75/0/22578 (size/max/drops/flushes); Total output drops: 12474
Queueing strategy: dual fifo
Output queue: high size/max/dropped 0/256/0
Output queue: 0/128 (size/max)
5 minute input rate 3091000 bits/sec, 501 packets/sec
5 minute output rate 1209000 bits/sec, 539 packets/sec
130058690 packets input, 1958602193 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 parity
0 input errors, 0 CRC, 0 frame, 0 overrun, 401 ignored, 0 abort
169482430 packets output, 1317261149 bytes, 0 underruns
0 output errors, 0 applique, 4 interface resets
0 output buffer failures, 0 output buffers swapped out
4 carrier transitions
rxLOS inactive, rxLOF inactive, rxAIS inactive
txAIS inactive, rxRAI inactive, txRAI inactive
config snippets
map-class frame-relay VOICE-MAP
frame-relay cir 18432000
frame-relay mincir 18432000
frame-relay fragment 1000
service-policy output VOICE-POLICY
class-map match-all VOICE-CLASS
match dscp ef
class-map match-any VOICE-CONTROL
match dscp cs3
match dscp af31
class-map match-all voice
match dscp ef
match fr-dlci 31
!
!
policy-map VOICE-POLICY
class VOICE-CLASS
priority 5000
class VOICE-CONTROL
bandwidth 2000
class class-default
fair-queue
interface Serial1/0
description 4032434
no ip address
encapsulation frame-relay IETF
ip route-cache flow
dsu bandwidth 18432
framing c-bit
cablelength 10
serial restart-delay 0
frame-relay traffic-shaping
frame-relay lmi-type ansi
max-reserved-bandwidth 96
!
interface Serial1/0.30 point-to-point
description DIA-VC-30
ip address 67.155.1.193 255.255.255.252
ip access-group block-private-networks in
ip access-group match-local out
no cdp enable
frame-relay class VOICE-MAP
frame-relay interface-dlci 30 IETF
!
interface Serial1/0.31 point-to-point
description Mesh-VPN-VC-31
ip vrf forwarding VPN
ip address 10.1.1.1 255.255.255.252
ip nbar protocol-discovery
no cdp enable
frame-relay class VOICE-MAP
frame-relay interface-dlci 31 IETF
