- Community Home
- >
- Servers and Operating Systems
- >
- HPE BladeSystem
- >
- BladeSystem - General
- >
- Catalyst Blade Switch 3020 (410916-B21)'s VLAN MTU
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
02-21-2012 06:31 AM
02-21-2012 06:31 AM
Catalyst Blade Switch 3020 (410916-B21)'s VLAN MTU
A question from Yao:
****************
I have 2 questions about Catalyst Blade Switch 3020 (410916-B21).
According to below guide, system mtu jumbo’s range is 1500 to 9000 bytes and VLAN MTU range is 1500 to 18190.
301
system mtu bytes (Optional) Change the MTU size for all interfaces on
the switch that are operating at 10 or 100 Mb/s. The
range is 1500 to 1998 bytes; the default is 1500 bytes.
system mtu jumbo bytes (Optional) Change the MTU size for all Gigabit
Ethernet interfaces on the switch. The range is 1500 to
9000 bytes; the default is 1500 bytes.
320 page
Table 12-2 Ethernet VLAN Defaults and Ranges
MTU size range: 1500 to 18190
My questions are the following ones:
① What’s the meaning of VLAN MTU?
② What’s the relation between system MTU and VLAN MTU? For instance, should I set VLAN MTU bigger than system MTU?
*****************
From Jim:
****************
I think these Catalyst IOS options are somewhat vestigial. The MTU maximum transmission unit (packet size, in bytes) that the VLAN can use (up to 18190) is for Token Ring or FDDI networks of the past as they could utilize the larger MTU’s, Ethernet networks are as you stated 1500 default and up to 9000 for jumbo configurations.
***************
Any other comments or suggestions?