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Refer to the exhibit.
BGP is running on the network, and CE1 currently prefers routes to the internet via PE 1 A network engineer must manipulate the BGP routes that CE1 receives from PE2 to be more desirable The engineer configured a route map using MED and applied it on CE1 outbound from PE2. However, after a BGP soft reset. PE1 is still preferred. Which action must the engineer take so that PE2 is chosen as the next hop?
Suggested Answer: B
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31 comments · newest first
TO
Tommy
11 months ago
D could work, but it's a bit of a roundabout way.
EL
Elenora
11 months ago
Wait, I thought MED was enough to change preferences?
WA
Wade
11 months ago
C seems off, it should be outbound, not inbound.
EL
Elenore
11 months ago
I think A would just complicate things more.
BE
Bea
12 months ago
B is the way to go for local preference!
DE
Deandrea
12 months ago
AS path prepending sounds familiar, but I don’t recall if it would help in this scenario. I guess option D could be a possibility, but I’d need to think it through more.
DE
Desire
1 year ago
I’m a bit confused about the direction of the route map. I thought applying it inbound might change the preference, so option C seems plausible, but I’m not certain.
CH
Cherry
1 year ago
I think using local preference along with MED could be the right approach, like in that practice question we did last week. So maybe option B?
MI
Mitzie
1 year ago
I remember studying how weight is preferred over MED in BGP, so maybe option A could work, but I'm not entirely sure.
TE
Tess
1 year ago
Prepending the AS path could work, but I'm not sure if that's the most elegant solution here. I'll need to carefully consider the tradeoffs between the different options.
JA
Janet
1 year ago
Ah, I see. Manipulating the weight or local preference could be a good approach to influence the BGP decision. I'll need to review the details on how those attributes impact path selection.
RE
Reiko
1 year ago
Okay, I think I understand the key issue here. We need to make the routes from PE2 more desirable to CE1 than the routes from PE1. The route map using MED didn't work, so I'll need to explore the other options.
FR
Francine
1 year ago
Hmm, this looks like a tricky BGP routing question. I'll need to carefully consider the options and think through the BGP path selection process.
LA
Lai
1 year ago
Hmm, I'm a bit unsure about the inbound versus outbound direction for the route map. I'll need to double-check the BGP best path selection criteria to make sure I apply the route map correctly.
AB
Abraham
1 year ago
Okay, I've read through the options a few times now. I think option D is the best fit - it talks about a quantitative measure of the level of service, which seems to be the core of what an SLI is.
CH
Chaya
1 year ago
This seems pretty straightforward. The difference between public and private SLBs is that private ones use the internal network while public ones use the internet, so I'll go with A.
BR
Brigette
1 year ago
Haha, I bet the engineer is regretting not using the 'make PE2 the cool kid' option on the route map. Maybe they should try the 'bribe PE2 with cookies' technique next.
BE
Bev
1 year ago
User 3: Update the route map to use only weight to manipulate the path.
RO
Royal
1 year ago
User 2: Haha, that would be interesting!
CE
Cecil
1 year ago
User 1: Maybe they should try the 'bribe PE2 with cookies' technique next.
NE
Nelida
1 year ago
I'm with Afton on this one. Applying the route map inbound is the way to go. Who wants to mess with AS path prepending when you can just tweak the local pref?
MA
Matilda
1 year ago
C) Apply the route map on CE1 In the inbound direction.
RE
Rebbecca
1 year ago
B) Configure the route map with MED and local preference to manipulate the route outbound
DO
Dorothy
1 year ago
A) Update the route map to use only weight to manipulate the path.
ME
Meaghan
2 years ago
D seems like a good option too. Prepending the AS path can make the route less desirable and push CE1 to prefer the PE1 path.
MI
Misty
2 years ago
That's a good point. Applying the route map on CE1 in the inbound direction might also help.
AF
Afton
2 years ago
The route map is being applied outbound, so I think C is the correct answer. Applying it inbound would allow us to manipulate the routes received from PE2.
KA
Kayleigh
1 year ago
Yes, you are right. By applying the route map on CE1 in the inbound direction, we can manipulate the routes received from PE2 to make PE2 the preferred next hop.
IV
Ivory
1 year ago
I think C is the correct answer because applying the route map on CE1 in the inbound direction would manipulate the routes received from PE2.
OR
Ora
2 years ago
I disagree. I believe configuring the route map with MED and local preference to manipulate the route outbound would be more effective.
MI
Misty
2 years ago
I think the engineer should update the route map to use only weight to manipulate the path.