Establishing A Channel In Pnni With A Flat Network - 3Com CoreBuilder 7000 Operation Manual

88 C 4: P
HAPTER RIVATE
Establishing a
Channel in PNNI with
a Flat Network
A.1.1
A.1.2
A.1.3
A.1.5
A.1.6
Source
Destination
N - -N I
ETWORK TO ETWORK NTERFACE
mechanisms that ensure that the data will be transferred without having
to send a disconnect message to the source.
In this section, the example shown in Figure 27 will be used. Node A.1.1
wants to establish a connection to send data to node A.2.6.
A.1.4
A.1.8
A.1.7
A.2.3
DTL for the chosen path:
A.1.1, A.1.3, A.1.2, A.1.5, A.1.7, A.2.3, A.2.2, A.2.1, A.2.5, A.2.6
Figure 27 Sending a Signal Between Two Nodes
There are many paths that the signal can take. Based on reachability, QoS
metrics and current information available about the links, the path from
A.1.1 to A.2.6 is chosen, and a DTL is created. Since the network has no
groups, the DTL would include every node in the path. A signal with
PVPC (Permanent Virtual Path Connection) and PVCC (Permanent Virtual
Channel Connection) is created and a set of DTLs are generated. The
(PNNI) V 1.0
ERSION
A.2.0
A.1.9
A.2.1
A.2.5
A.2.2
A.2.4
Chosen Path
Physical Link
A.2.7
A.2.6