SquareWorld
IS-IT--Management
I have two Voice VLANs. 192.168.1.0/21 & 10.0.0.0/24 (and a few other Data VLANs) on two 4500G switches with 10Gig Fiber as a backbone.
The 192 network (and data VLANs) have no problems with Packet Loss or Jitter, the 10 network seems to be having troubles. Both use the same switches and same backbone fiber/Ethernet.
I was hopping for someone to review my configs to double check I'm doing QoS properly. (End to End sniffs show DSCP values haven't been modified, but I'm getting different Jitter/Packet Loss Values.)
iperf - UDP Two Stream 64kbits/sec - 10 network
iperf - UDP Two Stream 64kbits/sec - 192 network
Wireshark (port mirror) - 10 Network
Wireshark (port mirror) - 192 Network
NQA - 3com switch to 3com switch
Switch Config is the same for both.
Shouldn't I be getting jitter for all VLANs?
The 192 network (and data VLANs) have no problems with Packet Loss or Jitter, the 10 network seems to be having troubles. Both use the same switches and same backbone fiber/Ethernet.
I was hopping for someone to review my configs to double check I'm doing QoS properly. (End to End sniffs show DSCP values haven't been modified, but I'm getting different Jitter/Packet Loss Values.)
iperf - UDP Two Stream 64kbits/sec - 10 network
Code:
BANDWIDTH JITTER PACKET LOSS
58.8 Kbits/sec 21.029 ms (0%)
58.8 Kbits/sec 15.907 ms (0%)
58.8 Kbits/sec 11.676 ms (0%)iperf - UDP Two Stream 64kbits/sec - 192 network
Code:
BANDWIDTH JITTER PACKET LOSS
70.6 Kbits/sec 1.137 ms (0%)
70.6 Kbits/sec 0.567 ms (0%)
70.6 Kbits/sec 0.287 ms (0%)Wireshark (port mirror) - 10 Network
Code:
RTP DSCP Expedited Forwarding 0x2e - 19592Packets - 156 Lost (0.8%) - 0.63 Max Jitter (ms)Wireshark (port mirror) - 192 Network
Code:
RTP DSCP Expedited Forwarding 0x2e - 654Packets - 0 Lost (0.0%) - 0.14 Max Jitter (ms)NQA - 3com switch to 3com switch
Code:
NQA entry(admin admin, tag jitter) test result:
Destination ip address: 192.168.1.1
Send operation times: 10 Receive response times: 10
Min/Max/Average Round Trip Time: 2/24/6
Square-Sum of Round Trip Time: 824
Last succeeded test time: 2010-06-14 23:25:51.2
Extend result:
Packet lost in test: 0%
Failures due to Timeout: 0
Failures due to System Busy: 0
Failures due to Disconnect: 0
Failures due to No Connection: 0
Failures due to Sequence Error: 0
Failures due to Internal Error: 0
Failures due to Other Errors: 0
Jitter result:
RTT Number: 10
SD Maximal delay: 12 DS Maximal delay: 12
Min Positive SD: 1 Min Positive DS: 1
Max Positive SD: 20 Max Positive DS: 1
Positive SD Number: 4 Positive DS Number: 1
Positive SD Sum: 23 Positive DS Sum: 1
Positive SD average: 6 Positive DS average: 1
Positive SD Square Sum: 403 Positive DS Square Sum: 1
Min Negative SD: 1 Min Negative DS: 1
Max Negative SD: 20 Max Negative DS: 1
Negative SD Number: 3 Negative DS Number: 1
Negative SD Sum: 31 Negative DS Sum: 1
Negative SD average: 10 Negative DS average: 1
Negative SD Square Sum: 501 Negative DS Square Sum: 1
SD lost packets number: 0 DS lost packet number: 0
Unknown result lost packet number: 0Switch Config is the same for both.
Code:
#
voice vlan 192 enable
voice vlan mac-address 0004-f200-0000 mask ffff-ff00-0000 description Avaya01
voice vlan mac-address 0007-3b00-0000 mask ffff-ff00-0000 description Avaya02
voice vlan mac-address 001b-4f00-0000 mask ffff-ff00-0000 description Avaya03
voice vlan mac-address 0090-8f00-0000 mask ffff-ff00-0000 description AudioCodes
s
#
dhcp relay server-group 1 ip 192.168.20.12
#
gvrp
#
igmp-snooping
#
vlan 10
#
vlan 192
#
traffic classifier Class01 operator or
if-match ip-precedence 6
if-match acl 3001
if-match ip-precedence 5
if-match ip-precedence 7
if-match acl 2000
#
traffic behavior Behave01
car cir 38400 cbs 768000 red discard
#
qos policy VoIP
classifier Class01 behavior Behave01
#
acl number 2000
rule 0 permit source 10.0.0.0 0.0.0.255
rule 1 permit source 192.168.1.0 0.0.7.255
REMARK Notice the reverse subnet is correct for a /21
#
acl number 3001
rule 0 permit udp source-port eq 5001
rule 1 permit udp destination-port eq 5001
REMARK For iperf
#
interface NULL0
#
interface Vlan-interface10
ip address 10.0.0.1 255.255.255.0
#
interface Vlan-interface192
ip address 192.168.1.1 255.255.248.0
dhcp select relay
dhcp relay server-select 1
#
interface GigabitEthernet1/0/9
port access vlan 10
flow-control
broadcast-suppression pps 3000
undo jumboframe enable
description Inbound from Network 10.0.0.*
stp edged-port enable
qos sp
#
interface Ten-GigabitEthernet1/1/1
port link-type trunk
port trunk permit vlan all
flow-control
description 10Gbps Uplink
qos sp
gvrp
#
nqa-server enable
nqa-server udpecho 192.168.88.1 9000
#
ip route-static 0.0.0.0 0.0.0.0 192.168.1.255
#
ntp-service unicast-server 164.67.62.194
#
#
qos vlan-policy VoIP vlan 10 inbound
qos vlan-policy VoIP vlan 192 inboundShouldn't I be getting jitter for all VLANs?
