s*****g
发帖数: 1055 | 1 Comment on RFC1998, I think this is a stupid question, I never heard of this
RFC (and I did a search of NANOG mailing list, there is no single match),
So I googled this RFC, it turns out it is a very old RFC, what was
recommended by this RFC is a common practice for service providers.
If the interviewer asked you how can you control inbound/outbound traffic
beyond manipulating local-pref, MED, AS-prepending etc when multiple ASes
are involved, that would be a more appropriate question, who the f... 阅读全帖 |
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x*********n
发帖数: 28013 | 2 这个面试等了1年多了，石沉大海不知为啥就找我了。感谢chee的题目，题目有些相似。
我把全过程写一下，面的优点压力山大啊。
介绍你的daily duty，design什么，那个project最复杂，最难，遇到什么问题。
技术开始
1.single mode vs multimode
我说length，价格
MM的length value是啥？我说400，但是不同vendor不一样的，他说他们looking for
300 meters，你说的也算对。不同vendor不一样的。
2.Circuit CRC value, how do they work
瞎扯了一下，我说看看CPU，看看有没有什么broadcast storm，sh in transceiver看
看信号lost多少
3.circuit is not up, what will you check,
瞎说，真心不太懂。扯了一点transitmitter，smartjack，interface。
4.HSRP vs GLBP
又准备
5.OSPF LSA types,
又准备
6.how LSA 5 to reach LSA... 阅读全帖 |
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s*****g
发帖数: 1055 | 3 community-list is used by service providers not customers (typically), I
assume if Apple has a huge internal transit network (its own or via MPLS-VPN
), then it will use this RFC1998 thing heavily.
I don't know what you mean by "community-list优于as-path", community string
itself has no meaning in BGP decision process (except those well-known ones)
it is just used as a language that translates customers (or providers') BGP
needs to actionable BGP attributes, i.e. local-preference, as-path pre-
pen... 阅读全帖 |
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