Jumbo frames support between 3560E & 6509

amjad.aljada · ‎05-12-2010

Hi

i'm tring to enable jumbo frames between 3560E (Access) & 6509E (Core)

for 6509E jumbo frames support MTU size

(config)#system jumbomtu ?
<1500-9216> Jumbo mtu size in Bytes, default is 9216

for 3560E jumbo frames support MTU size

(config)#system mtu jumbo ?
<1500-9198> Jumbo MTU size in bytes

i need help to know what is the jumbo fram size supported ?

shall i use (9216) or (9198) or what exactly.

thanks

francisco_1 · ‎05-12-2010

What is the line card on the 6500 connected to the C3560e switch. "show module".

francisco_1 · ‎05-12-2010

On the 3560E, the system MTU range is from 1500 to 9198 bytes. The max is 9198 byte. Use the "system mtu jumbo" globally to change it.

On the 6500 the following switching modules do not support Jumbo frame. When jumbo frame support is configured, these modules drop ingress frames larger than 8092 bytes

• WS-X6516-GE-TX when operating at 100 Mbps

• WS-X6148-RJ-45, WS-X6148-RJ-45V and WS-X6148-RJ21, WS-X6148-RJ21V

• WS-X6248-RJ-45 and WS-X6248-TEL

• WS-X6248A-RJ-45 and WS-X6248A-TEL •

WS-X6348-RJ-45, WS-X6348-RJ45V and WS-X6348-RJ-21, WX-X6348-RJ21V, WS-X6548-GE-TX, WS-X6548V-GE-TX, WS-X6148-GE-TX, and WS- X6148V-GE-TX "

post "show module" to identify what card you have on the Cat 6500.

Francisco.

WS-X67xx cards does support Jumbo frame up to 9000 bytes. Max is 9216 bytes per frame

Francisco

amjad.aljada · ‎05-12-2010

hi

3560E is connected using WS-X6724-SFP

Mod Ports Card Type Model Serial No.

--- ----- -------------------------------------- ------------------ -----------

1 24 CEF720 24 port 1000mb SFP WS-X6724-SFP

2 24 CEF720 24 port 1000mb SFP WS-X6724-SFP

4 48 CEF720 48 port 10/100/1000mb Ethernet WS-X6748-GE-TX

5 5 Supervisor Engine 720 10GE (Active) VS-S720-10G

7 4 CEF720 4 port 10-Gigabit Ethernet WS-X6704-10GE

Mod Sub-Module Model Serial Hw Status

---- --------------------------- ------------------ ----------- ------- -------

1 Distributed Forwarding Card WS-F6700-DFC3C

2 Distributed Forwarding Card WS-F6700-DFC3C

4 Distributed Forwarding Card WS-F6700-DFC3C

5 Policy Feature Card 3 VS-F6K-PFC3C

5 MSFC3 Daughterboard VS-F6K-MSFC3

7 Distributed Forwarding Card WS-F6700-DFC3C

francisco_1 · ‎05-13-2010

On the 3560E, you can set system MTU range between 1500 to 9198 bytes by use the "system mtu jumbo" command.

On the 6500 the WS-X6724-SFP line card the maximum frame size is 9216 bytes.

Hope to help..

Francisco

Ganesh Hariharan · ‎05-12-2010

Hi
i'm tring to enable jumbo frames between 3560E (Access) & 6509E (Core)
for 6509E jumbo frames support MTU size
(config)#system jumbomtu ?
  <1500-9216>  Jumbo mtu size in Bytes, default is 9216
for 3560E  jumbo frames support MTU size
 (config)#system mtu jumbo ?
  <1500-9198>  Jumbo MTU size in bytes
i need help to know what is the jumbo fram size supported ?
shall i use (9216) or (9198) or what exactly.
thanks

Hi,

The default MTU size is 9216 bytes after you enable jumbo frame support on the individual port for 6500 series switches and for 3560 switches All Gigabit Ethernet interfaces support jumbo frames up to 9000 bytes.

Check out the below link for more information on Jumbo frame configuration on switches

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

Hope to Help !!

Ganesh.H

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