ncl_ccnsim

CCN (Contents-Centric Networking) Simulator

Manuals (in Japanese)

• here.

How to use

• Please build all sources using ant. Then you can build by ant build in the home directory.
• Double click ccnrun.bat for windows or run ./ccnrun.sh for Linux.
• The configuration file is ccn.properties click here
• The all log is written to ccn/ccnlog.csv as overwritten mode. The format of the log is as follows:

TIMESATMP, type, prefix,DataSize(MB), StartTime,FinishTime,duration(ms),Interest_senderID,Data(Cache)holdingNodeID, Hop#,# of SharedConnections,ContentsFound/Not,ByBC?,Memo

• As for type field, we have the following value:
• 1: Interest is arrived at the original server that has the original content (non-cached data).
• 2: Original data is returned to the client from the orignal server.
• 13: Interest is arrived at the cache holding router (i.e., cache hit).
• 3: Cached data is return to the client from the cache holding router.
• 4: Interest is arrived at the router by BreadCrumbs pointer.
• 5: A new CCN router joined.
• 6: A CCN router leaves.

Cache algorithm

• Since the simulator is based on Java, please create a new class that extends net.gripps.ccn.caching.BaseCachingAlgorithm.
• Example caching algorithm is implemented as OnPathCaching.java. Please refer to it.

How to create a new caching algorithm

1. In ccn.properties, please set ccn_caching_no=0 to ccn_caching_no=1(i.e., change the used index no). And please set ccn_caching_allnum=1 to ccn_caching_allnum=2 (i.e., increment it as the number of candidate caching algorithms).
2. In `ccn.net.gripps.ccn.core.CCNRouter', please change as follows:

Before:

this.cachings[0] = new OnPathCaching();
this.cachings[1] = new NoCaching();
this.usedCaching = this.cachings[CCNUtil.ccn_caching_no];

After:

this.cachings[0] = new OnPathCaching();
this.cachings[1] = new NoCaching();
this.cachings[2] = new NEW_CLASS();
this.usedCaching = this.cachings[CCNUtil.ccn_caching_no];

FIB routing algorithm

• Please create a new class that extends net.gripps.ccn.fibrouting.BaseRouting.
• Currently, we have ChordDHTRouting, ChordDHTBARouging(Chord with Barabasi-Albert Network), and LongestMatchRouting.

How to create a new routing algorithm

1. In ccn.properties, please set ccn_routing_no=0 to ccn_routing_no=1(i.e., change the used index no). And please set ccn_routing_allnum=1 to ccn_routing_allnum=2 (i.e., increment it as the number of candidate caching algorithms).
2. In net.gripps.ccn.process.CCNMgr and net.gripps.ccn.core.AbstractNode, please change as follows:

Before:

this.routings[0] = new ChordDHTRouting(this.nodeMap, this.routerMap);
this.usedRouting = this.routings[CCNUtil.ccn_routing_no];

After:

this.routings[0] = new ChordDHTRouting(this.nodeMap, this.routerMap);
this.routings[1] = new NEW_CLASS(this.nodeMap, this.routerMap);
this.usedRouting = this.routings[CCNUtil.ccn_routing_no];

BreadCrumbs algorithm

• Please create a new class that extends net.gripps.ccn.breadcrumbs.BaseBreadCrumbsAlgorithm.
• Currently, we have BreadCrumbsAlgorithm.

How to create a new BC algorithm

1. In ccn.properties, please set ccn_bc_allnum=2 to ccn_bc_allnum=3(i.e., change the used index no). And please set ccn_bc_enable=1 to ccn_bc_enable=2 (i.e., increment it as the number of candidate BC algorithms).
2. In `ccn.net.gripps.ccn.core.CCNRouter', please change as follows:

Before:

 this.bcs[0] = new NoBreadCrumbsAlgorithm();
 this.bcs[1] = new BreadCrumbsAlgorithm();
 this.usedBC = this.bcs[CCNUtil.ccn_bc_enable];

After:

this.bcs[0] = new NoBreadCrumbsAlgorithm();
this.bcs[1] = new BreadCrumbsAlgorithm();
this.bcs[2] = new NEW_CLASS();
this.usedBC = this.bcs[CCNUtil.ccn_bc_enable];

Churn resilience algorithm in CCN

• Please create a new class that extends net.gripps.ccn.churn.BaseChurnResilienceAlgorithm.
• Currently, we have ChordDHTCRAlgorithm.

How to create a new Churn Resilience (CR) algorithm

1. In ccn.properties, please set ccn_churn_enable=0 to ccn_churn_enable=2(i.e., change the used index no). And please set ccn_churn_allnum=2 to ccn_churn_allnum=3 (i.e., increment it as the number of candidate CR algorithms).
2. In `ccn.net.gripps.ccn.process.CCNMgr', please change as follows:

Before:

this.churns = new BaseChurnResilienceAlgorithm[CCNUtil.ccn_churn_allnum];
this.churns[0] = new NoChurnAlgorithm(this.usedRouting);
this.churns[1] = new ChordDHTCRAlgorithm((ChordDHTRouting)this.usedRouting);
this.usedChurn = this.churns[CCNUtil.ccn_churn_enable];

After:

this.churns = new BaseChurnResilienceAlgorithm[CCNUtil.ccn_churn_allnum];
this.churns[0] = new NoChurnAlgorithm(this.usedRouting);
this.churns[1] = new ChordDHTCRAlgorithm((ChordDHTRouting)this.usedRouting);
this.churns[2] = new NEW_CLASS();
this.usedChurn = this.churns[CCNUtil.ccn_churn_enable];

Copyright

see LICENSE

Copyright (c) 2019 Hidehiro Kanemitsu kanemitsuh@stf.teu.ac.jp