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Nexus 3172T jumbo frame trouble.

johnebuis
Level 1
Level 1

Hello, at work they recently connected an Isilon server to a Nexus 3172. I am connected with a QSFP broken into 3 interfaces to 3 nodes on the Isilon. I can log into the Isilon and see all interfaces are up with an MTU configured of 9000 but I can not ping above 1472. My config below has 9216 but I had it set at 9000 and it did not work. Am I missing anything in my configuration or is there not enough output shown below?

 

 

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policy-map type network-qos jumbo
  class type network-qos class-default
    mtu 9216
system qos
  service-policy type network-qos jumbo

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interface Ethernet1/50/1
  switchport access vlan 131
  speed 10000

interface Ethernet1/50/2
  switchport access vlan 131

interface Ethernet1/50/3
  switchport access vlan 131

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HOSTNAME# show int eth 1/50/1 | grep MTU
  MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec

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HOSTNAME# show queuing interface ether 1/50/1 | grep MTU
    HW MTU: 9216 (9216 configured)

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--- 192.168.131.19 ping statistics ---
5 packets transmitted, 5 packets received, 0.00% packet loss
round-trip min/avg/max = 1.135/1.233/1.362 ms
HOSTNAME# ping 192.168.131.19 packet-size 1472
PING 192.168.131.19 (192.168.131.19): 1472 data bytes
1480 bytes from 192.168.131.19: icmp_seq=0 ttl=62 time=1.359 ms
1480 bytes from 192.168.131.19: icmp_seq=1 ttl=62 time=1.098 ms
1480 bytes from 192.168.131.19: icmp_seq=2 ttl=62 time=1.242 ms
1480 bytes from 192.168.131.19: icmp_seq=3 ttl=62 time=1.424 ms
1480 bytes from 192.168.131.19: icmp_seq=4 ttl=62 time=1.589 ms

--- 192.168.131.19 ping statistics ---
5 packets transmitted, 5 packets received, 0.00% packet loss
round-trip min/avg/max = 1.098/1.342/1.589 ms
HOSTNAME# ping 192.168.131.19 packet-size 1473
PING 192.168.131.19 (192.168.131.19): 1473 data bytes
Request 0 timed out
Request 1 timed out
Request 2 timed out
^C
--- 192.168.131.19 ping statistics ---
4 packets transmitted, 0 packets received, 100.00% packet loss

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