10-21-2009 07:36 PM
I read following phrase in configuration guide of Nexus 5020
The Cisco Nexus 5000 Series switch is a Layer 2 device. This means it does not fragment frames. As a result,
the switch cannot have two ports in the same Layer 2 domain with different maximum transmission units
(MTUs). A per-physical Ethernet interface MTU is not supported. Instead, the MTU is set according to the
QoS classes. You modify the MTU by setting Class and Policy maps.
When you show the interface settings, a default MTU of 1500 is displayed for physical Ethernet interfaces
and a receive data field size of 2112 is displayed for Fibre Channel interfaces
Has anybody configured jumbo frame with above mentioned way ?
10-28-2009 03:34 PM
Yes, it looks something like this:
policy-map jumbo
class class-default
mtu 9216
policy-map class-default
class class-default
mtu 9216
system qos
service-policy class-default
03-09-2010 07:51 AM
Deleted reply and posted in LAN Routing and Switching forum
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