Ok, so I was able to find time at work today to play with our 6509 and our
new Spirent Test Center. I setup a small lab to test router on a stick. I
thought, hey I 've never done it, let me give it a shot. Here's my
topology:
R1
|
client1(vlan104)-Sw1-Sw2-Sw3-client2(vlan108)
I have 3 6509s and a Cisco 7304 as the router on the stick with near the
latest codes. I configured a dot1q trunk from sw2 to R1 with two
sub-interfaces on the router trunking two vlans 104 and 108. I configured
the vlans 104 and 108 across all the switches and put a client in each
vlan. I can ping and have layer 3 connectivity from client 1 to client 2.
Here's the kicker!
I ran smartbits from one end to the other and got like 80 meg throughput
unidirectional! These are all GigE links! I figured something was wrong
with my stick( not that stick!), so I shutdown the trunk to the router and
configured an SVI for each vlan to get get L3 connectivity from one end to
another. I now get GigE speeds Bidirectional. WTF OVER?!
I thought MLS was enabled by default, what's wrong with my router on a stick
and why should it cause only 80 meg throughput? It should route once and
switch many, but now I'm having doubts MLS is working on the 6509s. I did
some sh mls ip commands and see no entries. hmmmmmmm, well anyways I thought
I'd share my experiences today at work. It was a fun day! Oh and if any of
you want to take a stab at what's wrong, I plan on leaving the test bed up
for a few days to play with it, maybe even troubleshoot this problem some
more.
regards,
Dale
