22 Aug
2001
22 Aug
'01
8:41 p.m.
At 19:43 22/08/01, Leo Bicknell wrote:
_ALL_ devices on a layer-2 fabric need to have the same MTU. That means if there are any FastEthernet or Ethernet connected members 1500 bytes is it. It also means if you pick a larger value (4470, 9k) _ALL_ members must use the same value.
Only devices exchanging frames with each other need have the same MTU. One could easily imagine one 802.1q VLAN with MTU N and a different 802.1q VLAN with MTU Y all on the same switch, to give a trivial example. Some exchanges already use VLANs with their GigE switches for a variety of business reasons. Ran rja@inet.org