Jeff,
I've successfully used "ip pim sparse-mode" on SVIs assigned to VRF-lite
contexts on all my 6500s. This was on Sup720+MSFC3+PFC3B blades running
both ADVENTERPRISEK9_WAN-M and ADVIPSERVICESK9_WAN-M feature sets of the
12.2(18)SXF release.
I've not run into this problem on my 4500 switches, but then I'm running
them with SupV blades, and I've not yet had much call for VRF-lite there.
At 07:54 PM 5/27/2009, Jeff Kell wrote:
In the process of an upgrade/reconfiguration today, I discovered
that PIM multicast routing and VRF-lite are apparently mutually
exclusive on a 4506. In this case, specifically IOS
cat4500-entservicesk9-mz.122-50.SG1 on a Sup-IV WS-X4515.
With an "ip vrf forwarding ..." directive, there is no "ip pim"
option available, it disappears from the configuration options.
OK, that was the "old school" fix to make some limited multicast
work in this situation (Symantec Ghost for imaging remote labs).
Is there another way to achieve routed multicasting in a VRF
environment? Specifically, the imaging server resides in a "public
services" VRF, while the target labs are in other VRFs.
Is this a platform-specific restriction? Or is it
Catalyst-wide? Can the 6500 handle it (on a 'ip vrf forward'ed
interface or SVI)?
There are some imaging alternatives (just relocate a suitable
"master" copy to the local subnet), but there are some other
multicast "plans" on the table that aren't so easily bypassed.
Thanks in advance,
Jeff
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Douglas C. Stephens | UNIX/Windows/Email Admin
System Support Specialist | Network/DNS Admin
Information Systems | Phone: (515) 294-6102
Ames Laboratory, US DOE | Email: [email protected]
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