----- Original Message -----
From: Chuck Larrieu <[EMAIL PROTECTED]>
To: Jay Hennigan <[EMAIL PROTECTED]>
Cc: Peter Abraham <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Sunday, September 24, 2000 5:21 PM
Subject: RE: BGP **** CCO QUESTION ** PA
> Saved this one until I could take a look on a router. Some comments
within:
>
> >1. Which command allows Router A to advertise subnet 10.1.0.0/24 in BGP?
> >
> > A. network 10.1.0.0
> > B. network 10.1.0.0 255.255.0.0
> > C. network 10.1.0.0 mask 255.255.0.0
> > D. network 10.1.0.0/16
> * E. network 10.1.0.0 prefix 16
>
> We've already determined that B, D, and E are illegal commands
>
> A, which I mistakenly believed would work does not do anything on my
router.
>
> Router_3#sh ip bgp
> BGP table version is 7, local router ID is 3.3.3.3
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> *> 192.167.9.0 0.0.0.0 0 32768 i
> *> 199.199.199.0 0.0.0.0 0 32768 I
>
> IP Classless was configured.
>
> Relevant parts of the config:
>
> interface Loopback0
> ip address 10.1.1.1 255.255.0.0
> !
> interface Loopback1
> ip address 192.167.9.1 255.255.255.0
> !
> interface Loopback4
> ip address 199.199.199.1 255.255.255.0
>
> router bgp 100
> no synchronization
> bgp router-id 3.3.3.3
> network 10.1.0.0
> network 192.167.9.0
> network 199.199.199.0
> !
> ip classless
> ip route 0.0.0.0 0.0.0.0 Serial1
>
> yes I did a clear ip bgp * between config changes
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Jay
> Hennigan
> Sent: Monday, September 18, 2000 7:20 PM
> To: Chuck Larrieu
> Cc: Peter Abraham; [EMAIL PROTECTED]
> Subject: RE: BGP **** CCO QUESTION ** PA
>
> On Mon, 18 Sep 2000, Chuck Larrieu wrote:
>
> > Having just exited a three day Global Knowledge class on BGP, let's see
if
> > anything sunk through this thick skull of mine. Comments in line.
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
> > Peter Abraham
> > Sent: Thursday, September 14, 2000 2:02 PM
> > To: [EMAIL PROTECTED]
> > Subject: BGP **** CCO QUESTION ** PA
> >
> > All these are questions that I got from the CCO BCSN tests.
> >
> > 1. Which command allows Router A to advertise subnet 10.1.0.0/24 in BGP?
> >
> > A. network 10.1.0.0
> > B. network 10.1.0.0 255.255.0.0
> > C. network 10.1.0.0 mask 255.255.0.0
> > D. network 10.1.0.0/16
> > E. network 10.1.0.0 prefix 16
> >
> > I have my answer as A. B,D, and E all have the wrong syntax. Is C
right?
> I
> > know that the mask length for C is 16.
>
> Jay H:I would choose C. The wording of the question is "allows Router A
to
> advertise". Note that none of the answers LIMIT the advertisement to
> just the subnet 10.1.0.0/24. If no mask is specified, BGP assumes a
> classful network. Answer A has no mask, so should properly be written
> "network 10.0.0.0". C is the only properly-formatted answer which
> would allow the /24 subnet. It would also allow any other subnets of
> 10.1.0.0/16 to be advertised, which is ok.
>
> CL: folks as literal minded as myself often outsmart themselves with
> questions like this. Kinda like my network 0.0.0.0 255.255.255.255 area 0
or
> network 172.16.1.1 172.16.1.1 area 0 propositions in OSPF. There is an
> answer that does what the question asks, plus a whole lot more.
>
> Note: even assuming BGP defaults to the classful boundary, the network
> 10.0.0.0 does NOT appear in the BGP table if the network statement
indicates
> 10.1.0.0
>
> <<snip for brevity>>
>
> **NOTE: New CCNA/CCDA List has been formed. For more information go to
> http://www.groupstudy.com/list/Associates.html
> _________________________________
> UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
> FAQ, list archives, and subscription info: http://www.groupstudy.com
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
**NOTE: New CCNA/CCDA List has been formed. For more information go to
http://www.groupstudy.com/list/Associates.html
_________________________________
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscription info: http://www.groupstudy.com
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
