Feature #3143
openDiscover RIB management prefix of connected gateway router
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Description
Design a procedure to discover the RibMgmt prefix of a connected gateway router.
Scenario:
- An end host is already connected to zero or more gateway routers. For each router, the end host knows a prefix to access its NFD-RIB.
- The end host connects to one or more additional gateway routers.
- For each new router, the end host should discover a prefix to access its NFD-RIB.
Requirements and assumptions:
- The end host must be able to verify responses from gateway routers against a trust schema.
- The end host should support multiple simultaneous discoveries, because it's possible that an additional connection is established before the previous discovery is complete.
- The end host should tolerate multiple connected gateway routers having the same NFD-RIB prefix.
- It's assumed that the NFD-RIB prefix of a connected router does not change without breaking the connection.
Updated by Junxiao Shi about 11 years ago
- Related to Feature #3142: Configurable top-level prefixes for NFD-RIB added
Updated by Junxiao Shi about 11 years ago
- Blocks Feature #3145: Collect and publish routable-prefixes added
Updated by Muhammad Hosain Abdullahi Sabet almost 10 years ago
3.For each new router, the end host should discover a prefix to access its NFD-RIB.
AND
- The end host should tolerate multiple connected gateway routers having the same NFD-RIB prefix.
So you are certain that "a prefix" in "3." of scenario section will not be a unique one, otherwise req. no 3 will not exist, right? Thus, maybe -imho- we could have a mapping-like phase in end-host's nfd side which maps prefixes to faces and vice versa?
Updated by Junxiao Shi almost 10 years ago
The end host should tolerate multiple connected gateway routers having the same NFD-RIB prefix.
The discovery protocol only needs to find out what prefix each gateway router is using. In case of multiple routers having the same NFD-RIB prefix, further operations may not run smoothly, but it's not discovery protocol's concern.
a mapping-like phase in end-host's nfd side which maps prefixes to faces and vice versa
Yes, the outcome of this protocol is to have a mapping between face and NFD-RIB prefix, as indicated in scenario step1.