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circuit cost
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Value you assign to a remote peer to indicate the relative preference
for establishing a circuit through the specified peer. The lower the
cost, the higher the preference.
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circuit weight
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Value you assign to a remote peer to indicate the extent to
which the specified peer can participate in establishing circuits.
The higher the circuit weight, the greater the percentage of total
circuits established with this remote peer.
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destination service access point (DSAP)
|
Service access point (SAP) that identifies the destination for
which a logical link control protocol data unit (LPDU) is intended.
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DLSw circuit
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Path formed by establishing a data link control (DLC) connection
between each locally configured SNA end system and a local router
configured for DLSw. A DLSw circuit is identified by the circuit ID,
which includes the SNA end system MAC address, local service access
point (LSAP), destination MAC address, and destination service access
point (DSAP). Multiple DLSw circuits can operate over the same DLSw
connection.
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DLSw connection
|
Set of TCP connections between two DLSw peers that is established
after the initial handshake and successful capabilities exchange.
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explorer timeout
|
Number of seconds a DLSw router waits for a response from its
peers to its explorer requests.
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I-frame
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Information frame used to transfer sequentially numbered logical
link control protocol data units (LPDUs) between link stations.
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Logical Link Control (LLC)
|
Data-link layer protocol used on a LAN. LLC1 provides connectionless
data transfer, and LLC type 2 provides connection-oriented data transfer.
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LLC protocol data unit (LPDU)
|
Logical link control (LLC) frame on a DLSw network.
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local reachability cache
|
Cache of pairs of local media access control (MAC) addresses
and local Logical Link Control (LLC) IP addresses, maintained on a
DLSw router for a specified number of seconds. The router uses the
local cache to determine whether a local SNA host is reachable through
any of the router's LLC interface.
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preemption
|
Process by which a master router takes over from a backup router
after recovering from a failure incident.
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priority-cost
|
Value that is deducted from the priority value of a router to
determine when it takes over for a master router.
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redundancy group
|
Group of DLSw peer routers on the same Ethernet segment of a
network.
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remote reachability cache
|
Cache of pairs of remote media access control (MAC) addresses
and remote peer IP addresses, maintained on a DLSw router for a specified
number of seconds. The router uses the remote cache to determine whether
a remote SNA host is reachable through any of the router's remote
peers.
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service access point (SAP)
|
OSI term for the component of a network address that identifies
the individual application sending or receiving a packet on a host.
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source service access point (SSAP)
|
Service access point (SAP) that identifies the origin of an
LPDU on a DLSw network.
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Switch-to-Switch Protocol (SSP)
|
Protocol implemented between two DLSw routers that establishes
connections, locates resources, forwards data, and handles error recovery
and flow control.
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