
Chapter 20
| ERPS Commands
– 539 –
◆
If this command is disabled, the following strings are used as the node
identifier:
■
ERPSv1: 01-19-A7-00-00-01
■
ERPSv2: 01-19-A7-00-00-[Ring ID]
Example
Console(config-erps)#propagate-tc
Console(config-erps)#
raps-without-vc
This command terminates the R-APS channel at the primary ring to sub-ring
interconnection nodes. Use the
no
form to restore the default setting.
Syntax
[
no
]
raps-without-vc
Default Setting
R-APS with Virtual Channel
Command Mode
ERPS Configuration
Command Usage
◆
A sub-ring may be attached to a primary ring with or without a virtual channel.
A virtual channel is used to connect two interconnection points on the sub-
ring, tunneling R-APS control messages across an arbitrary Ethernet network
topology. If a virtual channel is not used to cross the intermediate Ethernet
network, data in the traffic channel will still flow across the network, but the all
R-APS messages will be terminated at the interconnection points.
◆
Sub-ring with R-APS Virtual Channel – When using a virtual channel to tunnel
R-APS messages between interconnection points on a sub-ring, the R-APS
virtual channel may or may not follow the same path as the traffic channel over
the network. R-APS messages that are forwarded over the sub-ring’s virtual
channel are broadcast or multicast over the interconnected network. For this
reason the broadcast/multicast domain of the virtual channel should be limited
to the necessary links and nodes. For example, the virtual channel could span
only the interconnecting rings or sub-rings that are necessary for forwarding
R-APS messages of this sub-ring. Care must also be taken to ensure that the
local RAPS messages of the sub-ring being transported over the virtual channel
into the interconnected network can be uniquely distinguished from those of
other interconnected ring R-APS messages. This can be achieved by, for
example, by using separate VIDs for the virtual channels of different sub-rings.
Note that the R-APS virtual channel requires a certain amount of bandwidth to
forward R-APS messages on the interconnected Ethernet network where a sub-
ring is attached. Also note that the protection switching time of the sub-ring
Содержание ECS4120-28F
Страница 36: ...Contents 36...
Страница 38: ...Figures 38...
Страница 46: ...Section I Getting Started 46...
Страница 70: ...Chapter 1 Initial Switch Configuration Setting the System Clock 70...
Страница 86: ...Chapter 2 Using the Command Line Interface CLI Command Groups 86...
Страница 202: ...Chapter 5 SNMP Commands Additional Trap Commands 202...
Страница 210: ...Chapter 6 Remote Monitoring Commands 210...
Страница 216: ...Chapter 7 Flow Sampling Commands 216...
Страница 278: ...Chapter 8 Authentication Commands PPPoE Intermediate Agent 278...
Страница 360: ...Chapter 9 General Security Measures Port based Traffic Segmentation 360...
Страница 384: ...Chapter 10 Access Control Lists ACL Information 384...
Страница 424: ...Chapter 11 Interface Commands Power Savings 424...
Страница 446: ...Chapter 13 Power over Ethernet Commands 446...
Страница 456: ...Chapter 14 Port Mirroring Commands RSPAN Mirroring Commands 456...
Страница 488: ...Chapter 17 UniDirectional Link Detection Commands 488...
Страница 494: ...Chapter 18 Address Table Commands 494...
Страница 554: ...Chapter 20 ERPS Commands 554...
Страница 620: ...Chapter 22 Class of Service Commands Priority Commands Layer 3 and 4 620...
Страница 638: ...Chapter 23 Quality of Service Commands 638...
Страница 772: ...Chapter 25 LLDP Commands 772...
Страница 814: ...Chapter 26 CFM Commands Delay Measure Operations 814...
Страница 826: ...Chapter 27 OAM Commands 826 1 1 00 12 CF 6A 07 F6 000084 Enabled Disabled Enabled Disabled Console...
Страница 836: ...Chapter 28 Domain Name Service Commands 836...
Страница 848: ...Chapter 29 DHCP Commands DHCP Relay Option 82 848...
Страница 902: ...Section III Appendices 902...
Страница 916: ...Glossary 916...
Страница 926: ...CLI Commands 926...
Страница 937: ......
Страница 938: ...E092017 CS R02...