[j-nsp] two questions regarding the virtualized resource isolation

[Daniel Lete]

Hello Simon,
1) Depending on the PIC, there are 4 or 8 queues per physical interface. If you 
create subinterfaces they will share the same 4 (or 8 queues). Depending on the 
configuration of the queues, traffic in subinterface A can starve traffic in 
subinterface B.

2) Logical routers each have their own daemon for the routing protocols they 
run, the failure of one does not affect the other. In your question, one OSPF 
process under attack in one logical router would not affect the OSPF daemon (or 
any other) in the other logical router.

Regards,
Daniel




"Simon Chen" wrote the following on 01/10/2008 19:05:
> Hi all,
> 
> I have two simple questions.
> 1) we configured two sub interfaces from one physical interface
> fe-0/0/1, say fe-0/0/1.1 and fe-0/0/1.2.
> Are they using the same queue or have separate queues? Is the traffic
> on fe-0/0/1.1 gonna affect fe-0/0/1.2 in any way?
> 
> 2) we configure two logical routers on the same physical router. If
> one router is under some sort of OSPF attack, basically receiving lots
> of OSPF messages, if the other router's routing plane gonna be
> affected in any way?
> 
> Thanks.
> -Simon
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