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Chapter 2
DLSw Implementation Notes
Source Route Bridge Topologies ....................................................................................2-1
Counting SRB LANs and Bridges ............................................................................2-2
Counting the IP Virtual Ring .....................................................................................2-3
Counting the Internal LAN ........................................................................................2-6
Counting the DLSw Bridge .......................................................................................2-7
Computing a DLSw Connection Path .......................................................................2-8
Parallel Data Paths .........................................................................................................2-9
Multiple DLSw Peers on a LAN ....................................................................................2-11
DLSw and Bridging Services ........................................................................................2-11
DLSw on an SRB Circuit ........................................................................................2-11
DLSw on an Ethernet/802.3 Circuit ........................................................................2-12
DLSw with Translation Bridge .................................................................................2-13
Memory Requirements .................................................................................................2-14
TCP Considerations .....................................................................................................2-15
DLSw Keepalive Time ............................................................................................2-15
TCP Max Retransmission Timeout .........................................................................2-16
Flow Control .................................................................................................................2-16
LLC2 Flow Control .................................................................................................2-17
TCP Flow Control ...................................................................................................2-17
Performance .................................................................................................................2-18
DLSw Packaging ....................................................................................................2-18
Chapter 3
DLSw Configuration Overview
DLSw Session Setup Overview ......................................................................................3-1
Site Manager Roadmaps to Configuring DLSw ..............................................................3-2
Configuration Objects for Single Switch DLSw ...............................................................3-5
DLSw SAP Table ......................................................................................................3-5
DLSw Slot Table .......................................................................................................3-6
Configuration Objects for Dual Switch DLSw .................................................................3-8
DLSw Peer IP Table .................................................................................................3-9
Configured Peers ...............................................................................................3-9
Simplifying the Peer IP Table ..................................................................................3-10
Broadcast Peers ..............................................................................................3-10
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