net.onrc.openvirtex.elements.link

Class OVXLink

java.lang.Object

net.onrc.openvirtex.elements.link.Link<OVXPort,OVXSwitch>

net.onrc.openvirtex.elements.link.OVXLink

All Implemented Interfaces:

Persistable

public class OVXLink
extends Link<OVXPort,OVXSwitch>

Implementation of a virtual link, which adds a unique ID, stores the tenant ID, a priority and a routing algorithm.

Field Summary

Fields inherited from class net.onrc.openvirtex.elements.link.Link

DB_KEY, dstPort, srcPort

Constructor Summary

Constructors

Constructor and Description
OVXLink(Integer linkId, Integer tenantId, OVXPort srcPort, OVXPort dstPort, RoutingAlgorithms alg) Instantiates a new virtual link.

Method Summary

Methods

Modifier and Type	Method and Description
void	generateLinkFMs(OVXFlowMod fm, Integer flowId) Push the flow mod to all the intermediate switches of the virtual link.
RoutingAlgorithms	getAlg() Gets the routing algorithm.
Map<String,Object>	getDBIndex()
String	getDBKey()
String	getDBName()
Map<String,Object>	getDBObject()
Integer	getLinkId() Gets the unique link id.
byte	getPriority() Gets the priority value.
Integer	getTenantId() Gets the tenant id.
void	register(List<PhysicalLink> physicalLinks, byte priority) Register mapping between virtual link and physical path.
void	setAlg(RoutingAlgorithms alg) Sets the routing algorithm.
void	setPriority(byte priority) Sets the priority value.
void	switchPath(List<PhysicalLink> physicalLinks, byte priority) Switch the link to the given path and priority.
void	tearDown() Disables the virtual link by disabling its end points.
boolean	tryRecovery(PhysicalLink plink) Tries to switch link to a backup path, and updates mappings to "correct" string of PhysicalLinks to use for this link.
boolean	tryRevert(PhysicalLink plink) Attempts to switch this link back to the original path.
void	unregister() Removes mappings and dependencies related to this link.

Methods inherited from class net.onrc.openvirtex.elements.link.Link

equals, getDstPort, getDstSwitch, getMetric, getSrcPort, getSrcSwitch, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

OVXLink

public OVXLink(Integer linkId,
       Integer tenantId,
       OVXPort srcPort,
       OVXPort dstPort,
       RoutingAlgorithms alg)
        throws PortMappingException

Instantiates a new virtual link. Sets its priority to 0.

Parameters:

linkId - the unique link id

tenantId - the tenant id

srcPort - virtual source port

dstPort - virtual destination port

alg - routing algorithm for the virtual link

Throws:

PortMappingException - if one of the ports is invalid

Method Detail

getLinkId

public Integer getLinkId()

Gets the unique link id.

Returns:

the link id

getTenantId

public Integer getTenantId()

Gets the tenant id.

Returns:

the tenant id

getPriority

public byte getPriority()

Gets the priority value.

Returns:

the priority value

setPriority

public void setPriority(byte priority)

Sets the priority value.

Parameters:

priority - the priority value

getAlg

public RoutingAlgorithms getAlg()

Gets the routing algorithm.

Returns:

the algorithm

setAlg

public void setAlg(RoutingAlgorithms alg)

Sets the routing algorithm.

Parameters:

alg - the algorithm

register

public void register(List<PhysicalLink> physicalLinks,
            byte priority)

Register mapping between virtual link and physical path.

Parameters:

physicalLinks - the path as a list of physical links

priority - the priority value

unregister

public void unregister()

Description copied from class: Link

Removes mappings and dependencies related to this link.

Specified by:

unregister in class Link<OVXPort,OVXSwitch>

tearDown

public void tearDown()

Disables the virtual link by disabling its end points.

switchPath

public void switchPath(List<PhysicalLink> physicalLinks,
              byte priority)

Switch the link to the given path and priority.

Parameters:

physicalLinks - the path as a list of physical links

priority - the priority value

getDBIndex

public Map<String,Object> getDBIndex()

Specified by:

getDBIndex in interface Persistable

Overrides:

getDBIndex in class Link<OVXPort,OVXSwitch>

getDBKey

public String getDBKey()

Specified by:

getDBKey in interface Persistable

Overrides:

getDBKey in class Link<OVXPort,OVXSwitch>

getDBName

public String getDBName()

Specified by:

getDBName in interface Persistable

Overrides:

getDBName in class Link<OVXPort,OVXSwitch>

getDBObject

public Map<String,Object> getDBObject()

Specified by:

getDBObject in interface Persistable

Overrides:

getDBObject in class Link<OVXPort,OVXSwitch>

generateLinkFMs

public void generateLinkFMs(OVXFlowMod fm,
                   Integer flowId)

Push the flow mod to all the intermediate switches of the virtual link.

Parameters:

fm - the original flow mod

flowId - the flow identifier

tryRecovery

public boolean tryRecovery(PhysicalLink plink)

Tries to switch link to a backup path, and updates mappings to "correct" string of PhysicalLinks to use for this link.

Parameters:

plink - the failed PhysicalLink

Returns:

true if successful, false otherwise

tryRevert

public boolean tryRevert(PhysicalLink plink)

Attempts to switch this link back to the original path.

Parameters:

plink - the restored physical link

Returns:

true if successful, false otherwise.