[c-nsp] mtu issues on 3750

[Tassos Chatzithomaoglou]

3750 switches are said to support mtu > 1500 (1500-9000) on all GE ports 
according to this:

http://www.cisco.com/en/US/products/hw/switches/ps700/products_configuration_example09186a008010edab.shtml#c3

3750#sh system mtu

System MTU size is 1500 bytes
System Jumbo MTU size is 1600 bytes

Routed port
-----------
3750#sh int g1/0/10
GigabitEthernet1/0/10 is up, line protocol is up (connected)
   MTU 1600 bytes, BW 1000000 Kbit, DLY 10 usec,

3750#sh ip int gi1/0/10
GigabitEthernet1/0/10 is up, line protocol is up
   MTU is 1500 bytes

SVI
---
3750#sh int g1/0/10
GigabitEthernet1/0/10 is up, line protocol is up (connected)
   MTU 1600 bytes, BW 1000000 Kbit, DLY 10 usec,

3750#sh ip int vlan 99
Vlan99 is up, line protocol is up
   MTU is 1500 bytes


So you can't have L3 mtu > 1546 (= system mtu) if the GE ports are configured as 
L3 (Routed/SVI) ports. Any idea how to overcome this?

--
Tassos