From: Jason Sinclair (sinclairj@xxxxxxxxxxxxxxx)
Date: Wed May 15 2002 - 20:24:43 GMT-3
Scott,
That is the point of the exercise. How do you get info from one BGP process
to another without neighbor statements. Also, if you wish change the AS
number on rtrC to 300.
Regards,
Jason Sinclair CCIE #9100
Manager, Network Control Centre
POWERTEL
Ground Level, 55 Clarence Street,
SYDNEY NSW 2000
AUSTRALIA
office: + 61 2 8264 3820
mobile: + 61 416 105 858
* sinclairj@powertel.com.au
-----Original Message-----
From: Scott Morris [mailto:swm@emanon.com]
Sent: Wednesday, 15 May 2002 21:33
To: 'Jason Sinclair'; ccielab@groupstudy.com
Subject: RE: POP Quiz - Answers
Well...
First, your BGP isn't going to do all that much because you
have no
neighbor statements...
Second, your OSPF isn't going to do anything because there's
nothing in
common! You have one link between the routers
(192.168.1.0/24) and OSPF
is running on only one side of that. You haven't put this
network into
OSPF on the second router.
So with those two things in mind, I don't think this is
going to do all
that much. :) And I'm not quite sure I understand the
logic behind
your redistribution loop and associated route-map. But
that's a minor
point at the moment with no other routing working.
When configuring things like this, "show ip ospf interfaces"
can be a
valuable command to tell you what interfaces WILL be playing
with OSPF.
And telling you about things you may have missed!
Scott
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]
On Behalf Of
Jason Sinclair
Sent: Wednesday, May 15, 2002 3:22 AM
To: Jason Sinclair; 'ccielab@groupstudy.com'
Subject: RE: POP Quiz - Answers
All,
Guys,
For pop quiz 1 I have the following configs. I have not
labbed them due
to time constraints, however I believe they are correct. If
you see any
mistakes please advise.
Configs are:
RtrA
Int lo0
Ip address 1.1.1.1 255.255.255.255
Int s0
Ip address 192.168.1.1 255.255.255.0
Router ospf 100
Network 192.168.1.0 0.0.0.255 area0
Redistribute bgp 100 subnets
Router bgp 100
Network 1.1.1.1 mask 255.255.255.255
Redistribute ospf 100 route-map tags
No auto-summary
No synchronization
Route-map tags permit 10
Set as-path tag
Rtrb
Int s0
Ip address 192.168.1.2 255.255.255.0
Clock rate 64000
Int s1
Ip address 172.16.1.1 255.255.255.0
Clock rate 64000
Router ospf 100
Network 192.168.1.0 0.0.0.255 area 0
Network 172.16.1.0 0.0.0.255 area 0
Rtrc
Int lo0
Ip address 3.3.3.3 255.255.255.255
Int s0
Ip address 172.16.1.2 255.255.255.0
Router ospf 100
Network 172.16.1.0 0.0.0.255 area0
Redistribute bgp 100 subnets
Router bgp 100
Redistribute ospf 100 route-map tags
Network 3.3.3.3 mask 255.255.255.255
No auto-summary
No synchronization
Route-map tags permit 10
Set as-path tag
Cheers,
Jason Sinclair CCIE #9100
Manager, Network Control Centre
POWERTEL
Ground Level, 55 Clarence Street,
SYDNEY NSW 2000
AUSTRALIA
office: + 61 2 8264 3820
mobile: + 61 416 105 858
* sinclairj@powertel.com.au
-----Original Message-----
From: Jason Sinclair
[mailto:sinclairj@powertel.com.au]
Sent: Wednesday, 8 May 2002 13:32
To: 'ccielab@groupstudy.com'
Subject: POP Quiz
All,
I am proposing to regularly post little
scenarios to
this forum. If you see
any benefit in this, the first is below:
Quick Scenario 1:
A quick scenario - should take 10 minutes to
achieve.
Topology is:
RtrA-----rtrB-------rtrC
Rules:
1. You can run BGP on rtrA and rtrC,
but NOT rtrB.
2. Any IGP can be run on rtrA, rtrB,
rtrC.
3. Create a loopback on rtrA and rtrC
and ensure
that
the opposite
route to the loopback is visible to the
remote router
via BGP.
4. You cannot peer rtrA and rtrC with
respect to
BGP
5. The origin code for your route must
be the same
as
the original
origin code when the route was injected into
BGP
6. 10 minutes to complete
I will post answers in 5 days time.
Cheers,
Jason Sinclair CCIE #9100
Manager, Network Control Centre
POWERTEL
Ground Level, 55 Clarence Street,
SYDNEY NSW 2000
AUSTRALIA
office: + 61 2 8264 3820
mobile: + 61 416 105 858
* sinclairj@powertel.com.au
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