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A K M Mahmudul Hoque, 04/17/2014 06:16 AM
Module description¶
Conceptually NLSR is divided into four modules
- Core
- Communication
- Routing
- Security
1. Core Module¶
- Read and parse configuration file
- Stores all configurable parameter values
- Stores Adjacent in Adjacency list
- Stores advertising names in name prefix list
- Establish connection with NDN Forwarder
- Establishing Adjacencies with neighbors
- Build LSAs
- Stores Link State Advertisement (LSA) in Link State Database (LSDB)
2. Communication Module¶
- Creates CronoSync connection
- Handles synchronization logic of NLSR LSDB updates
- Publishes LSDB updates in router name
- Upon update notification send interest for LSAs
- Publishes certificates updates
- Send interest to fetch certificates
- Processes all inbound/outbound interest/data of NLSR
3. Routing Module¶
- Calculate routing table ( depending configuration use link - state routing calculator or Hyperbolic routing calculator)
- Stores routing table
- Creates and store Name prefix table ( Name prefix table entry is Name Prefix with nexthops list to reach that name)
4. Security Module ( This module will no longer be available later when NLSR will use NFD's rule based validator)¶
- Fetch, validate and stores certificate in Certificate Store
- If some certificate is fetched but waiting to be validated is recorded in waiting list
- After validation it is added in the certificate store otherwise discarded
- Validate each piece of data received by NLSR
- Sign data using router process keys before sending out
Updated by A K M Mahmudul Hoque over 10 years ago · 16 revisions