Central Switching Module PTN-CSM310-A/PTN-CSM540-A 5
Release 03 05/2020
1.
INTRODUCTION
1.1
General
This document is valid as of Dragon PTN Release 4.3DR.
This document describes the CSM310-A/CSM540-A Central Switching module (=CSM), which
is the heart of the Dragon PTN nodes. This module provides the main processing within the
Dragon PTN nodes via an Integrated Ethernet Multilayer Switch and onboard Traffic Manager.
The CSM must be plugged into a CSM slot in the node.
The CSM310-A must be used aggregation nodes whereas the CSM540-A must be used in core
nodes. For an overview of the CSM slots and different aggregation nodes and core nodes, see
the
‘Dragon PTN
Bandwidth Overview’
manual Ref. [100] in Table 2.
Table 1
Differences CSM310-A/CSM540-A
Item
CSM310-A
CSM540-A
Digit1
3 in 310 refers to 3 series
5 in 540 refers to 5 series
Digit2 and 3 10 in 310 refers to the ability to drive 10 Gbps ports
40 in 540 refers to the ability to drive 40 Gbps ports
Nodes Types Use in aggregation nodes, see Ref. [3] in Table 2
Use in core nodes, see Ref. [3b] in Table 2
Switching
capacity
- Non-blocking capacity for
- 4 x '1 Gbps / 10 Gbps' ports
- 24 x '1 Gbps' ports
- Non-blocking capacity for
- 60 x '1 Gbps / 10 Gbps' ports
Main supported features:
Central switching fabric
Ethernet
(future) Linear Protection switching: ITU G.8031
(future) Ring Protection switching: ERP ITU G.8032v2/Y.1731
Layer2: Link Aggregation/LAG on CSM310-A
MPLS-TP
Label switched paths
Pseudowires
Linear Protection switching
Ring Protection switching: ERP ITU G.8032v2/Y.1731
OAM (Y.1731 / BFD)
Service plane
Virtual switches
L2 / L3 Ethernet features
Synchronization
SyncE
PTP IEEE 1588v2 (=Precision Time Protocol)
Hot Swappable (only relevant for nodes with two redundant CSMs)
