02-21-2009 03:41 AM - edited 03-06-2019 04:09 AM
hello
when we use Lsa type 4?and what's the need for GrE tunnel in ipv6?
thanks
02-21-2009 03:55 AM
Hi,
The LSA type 4 is generated by ABRs and describes reachability to the ASBR.
The GRE Tunnels in IPv6 provides connectivity between 2 or More IPv6 Networks over IPv4, In MPLS it's being implemented because MPLS doesnt support IPv6 natively yet.
There are multiple ways 2 carry IPv6 Over MPLS:
1- 6PE.
2- 6VPE.
3- AToM (The payload is layer-2 Frames).
2- MPLS VPN Solution: This solution uses GRE Tunneling to carry IPv6 Over MPLS-VPN, The tunneling techniqes are:
1- 6to4.
2- IPv6 Over IP.
3- IPv4 compatible IPv6 Tunnels.
HTH
Mohamed
02-21-2009 04:12 AM
hello mohamed
thanks but when we use it?
02-21-2009 07:58 AM
Hi,
You use it when you have 2 Or more IPv6 Domains needs to be connected over abn IPv4 or MPLS domains.
HTH
Mohamed
02-21-2009 08:02 AM
i mean the lsa 4
02-21-2009 11:39 AM
Ali,
As I responded on another post, an LSA type 4 is generated automatically by all ABRs (except the area where the ASBR lives or stubby areas) for each an every ASBR. They are used to calculate reachability to the ASBR.
Regards
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