Brocade Network OS Administrator’s Guide v4.1.1 - Manual (Page 691)

5. Enter the show qos interface command to check the QoS configuration.
switch# show qos interface tengigabitethernet 66/0/55
Interface TenGigabitEthernet 66/0/55
Provisioning mode cee
Priority Tag disable
CEE Map default
FCoE Provisioned
Default CoS 0
Interface trust cos
In-CoS: 0 1 2 3 4 5 6 7
-----------------------------------------------------
Out-CoS/TrafficClass: 0/6 1/6 2/6 3/3 4/6 5/6 6/6 0/7
Per-Traffic Class Tail Drop Threshold (bytes)
TC: 0 1 2 3 4 5 6 7
-----------------------------------------------------
Threshold: 252 252 252 75284 252 252 57456 9576
Flow control mode PFC
CoS3 TX on, RX on
Multicast Packet Expansion Rate Limit 3000000 pkt/s, max burst 4096 pkts
Multicast Packet Expansion Tail Drop Threshold (packets)
TrafficClass: 0 1 2 3 4 5 6 7
-----------------------------------------------------
Threshold: 64 64 64 64 64 64 64 64
Traffic Class Scheduler configured for 1 Strict Priority queues
TrafficClass: 0 1 2 3 4 5 6 7
-----------------------------------------------------
DWRRWeight: 0 0 0 40 0 0 60 --
Multicast Packet Expansion Traffic Class Scheduler
TrafficClass: 0 1 2 3 4 5 6 7
-----------------------------------------------------
DWRRWeight: 12 13 12 13 12 13 12 13
6. Reconfigure QoS. Refer to Configuring QoS on page 471 for detailed information.
Verifying the data path
This procedure checks whether fabric continuity might be the reason for dropped packets.
NOTE
The E1MG-SX-OM and E1MG-LX-OM modules are not supported by Network OS. Despite being
Brocade products, these modules will return the error 'Optic is not Brocade qualified, optical monitoring
is not supported' and must be replaced with a supported module.
1. Enter the ping command to test for a complete path to the end device
switch# ping dest-address 10.24.81.2
PING 10.24.81.2 (10.24.81.2): 56 octets data
64 octets from 10.24.81.2: icmp_seq=0 ttl=128 time=9.4 ms
64 octets from 10.24.81.2: icmp_seq=1 ttl=128 time=0.3 ms
64 octets from 10.24.81.2: icmp_seq=2 ttl=128 time=0.3 ms
64 octets from 10.24.81.2: icmp_seq=3 ttl=128 time=0.3 ms
64 octets from 10.24.81.2: icmp_seq=4 ttl=128 time=0.3 ms
--- 10.24.81.2 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 0.3/2.1/9.4 ms
2. Enter the show interface command to display whether packets are coming in or are dropped as
errors. Specifically, examine the output fields shown underlined in the following example.
switch# show interface tengigabitethernet 66/0/60
TenGigabitEthernet 66/0/60 is up, line protocol is up (connected)
Hardware is Ethernet, address is 0005.3367.26d8
Current address is 0005.3367.26d8
Pluggable media present
Interface index (ifindex) is 283874428169
MTU 2500 bytes
LineSpeed Actual : 10000 Mbit
LineSpeed Configured : Auto, Duplex: Full
Flowcontrol rx: off, tx: off
Last clearing of show interface counters: 22:07:59
Queueing strategy: fifo
Receive Statistics:
15254 packets, 1395269 bytes
Verifying the data path
Network OS Administrator’s Guide 691
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