[rbridge] How many "priorities" are there?

[Anoop Ghanwani]

I think it's reasonable to have all of them
be separate.

Anoop 

> -----Original Message-----
> From: rbridge-bounces at postel.org 
> [mailto:rbridge-bounces at postel.org] On Behalf Of Ayan 
> Banerjee (ayabaner)
> Sent: Friday, April 25, 2008 1:24 PM
> To: Radia Perlman; Developing a hybrid router/bridge.
> Subject: Re: [rbridge] How many "priorities" are there?
> 
> Radia, 
> 
> I believe that a (IIH-Priority in base IS-IS), c (Root 
> priority TLV in draft-ward-l2isis), and d (Section 3.7.3 of 
> draft-ietf-trill-rbridge-protocol, Device ID TLV of 
> draft-ward-l2isis) are already defined. I would think that 
> the customer may want to configure all of them separately. 
> 
> Thanks,
> Ayan 
> 
> -----Original Message-----
> From: rbridge-bounces at postel.org 
> [mailto:rbridge-bounces at postel.org] On Behalf Of Radia Perlman
> Sent: Friday, April 25, 2008 9:53 AM
> To: Developing a hybrid router/bridge.
> Subject: [rbridge] How many "priorities" are there?
> 
> Is there just a single priority for an RBridge, that is used 
> for all the priorities, or are there separate ones for:
> a) priority for becoming DRB on a layer 2 cloud
> b) priority for becoming the "CSNP-generator" for announcing 
> VLAN x endnodes? And if so, is there a separate priority per 
> VLAN, so you can have low priority for one, and high for another?
> c) priority for becoming a tree root?
> d) priority for owning a chosen (as opposed to configured) nickname?
> 
> There might even be more cases where we use the term "priority".
> 
> I'd guess that a) and c) might be things that customers would 
> want to configure. I think that b) is something that should 
> be just a flag "I implement endnode advertisements (learning 
> from and advertising)", though perhaps the flag should be per 
> VLAN. I don't think d) matters, and we could just use the 
> same priority as for DRB.
> 
> Radia
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