Interview Questions!

Unanswered Question
devang_etcom Tue, 02/20/2007 - 10:05

HSRP MAC fix part: 0000.0c07.ac

conver ip in to mac: use http://www.cisco.com/warp/public/cc/techno/tity/prodlit/ipmlt_wp.htm

noramlly 25bit are fix mac(0x0100.5E) and other are the last 23 bits of the multicast Ip address

lsa 9 10 and 11 are known as Opaque lsa

LSA type 9 are link-local scope; they are not flooded beyond the local (sub) network.

LSA type 10 are area-local scope; they are not flooded beyond the borders of their associated area.

LSA type 11 are AS scope; they are flooded throughout the entire AS. Their scope are equivalent to the flooding scope of AS-external (type 5) LSAs. Then, they are not flooded into stub areas.

regards

Devang

purohit_810 Tue, 02/20/2007 - 10:08

Hi,

Ans:1 Fixed part mean?? did get you please tell something more.

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Ans:2)00:E0:00:01:00:7B:00:7B

MAC address: 00:01:00:7B:00:7B

PLease look decimal to Hexa decimal converter on

http://www.geocities.com/binary_converter/

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Ans: Yes you can represent

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Please look on RFC 2370.

only immediate neighbors of the originator (LSAs type-9);

b) only OSPF nodes located within the originator's OSPF area

(LSAs type-10);

c) all OSPF nodes within the originator's OSPF domain/AS (LSAs

type-11)

Also refer for full understanding below link.

http://tools.ietf.org/html/draft-bryskin-ospf-lsa-type11-validation-00

Regards,

Dharmesh Purohit

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