ForeRunner
ATM Switch Network Configuration Manual
7 - 7
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Signalling
7.2 Signalling Scope
A signalling channel can be configured to control either VCs within its own VP (VP-scope, the
default) or to control VCs in its own VP, in addition to controlling VCs in other VPs on the link
(link-scope).
The following criteria must be satisfied in order to use link-scope signalling channels:
•
There can be only one link-scope signalling channel on a given link.
•
A link-scope signalling channel must be created within VP 0 on the given link.
•
The path containing the link-scope signalling channel must be an elastic path.
•
A backplane signalling channel in an ASX-1000 cannot be a link-scope signalling
channel.
7.2.1
VC-Space
The VC-space of a signalling channel is the VPI/VCI space within which a signalling channel
can allocate connections. This is determined by the allocation scope of the signalling channel
and the VCI allocation range (see Section 7.1) for the signalling channel.
The VC-space of a VP-scope signalling channel is the VCI allocation range of the signalling
channel applied only to the path that contains the signalling channel.
The VC-space of a link-scope signalling channel is comprised of the aggregate VCI allocation
range of the signalling channel applied to all paths controlled by the signalling channel (i.e.,
the path containing the signalling channel and all other paths in which the signalling channel
has allocated connections).
Summary of Contents for forerunner series
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Page 16: ...TOC 10 ForeRunner ATM Switch Network Configuration Manual Table of Contents ...
Page 20: ...LOF 4 ForeRunner ATM Switch Network Configuration Manual List of Figures ...
Page 22: ...LOT 2 ForeRunner ATM Switch Network Configuration Manual List of Tables ...
Page 30: ...viii ForeRunner ATM Switch Network Configuration Manual Preface ...
Page 144: ...3 58 ForeRunner ATM Switch Network Configuration Manual Configuring an Emulated LAN ...
Page 180: ...6 12 ForeRunner ATM Switch Network Configuration Manual ATM Forum PNNI ...
Page 220: ...9 6 ForeRunner ATM Switch Network Configuration Manual Configuring Timing ...
Page 300: ...D 24 ForeRunner ATM Switch Network Configuration Manual Configuring FramePlus Modules ...
Page 308: ...Acronyms 8 ForeRunner ATM Switch Network Configuration Manual Acronyms ...
Page 346: ...Glossary 38 ForeRunner ATM Switch Network Configuration Manual Glossary ...
Page 352: ...Index 6 ForeRunner ATM Switch Network Configuration Manual Index ...