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Page 271 / 757 Scroll up to view Page 266 - 270
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DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch CLI Manual
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show dvmrp
Restrictions
None.
Example usage:
To show DVMRP configurations:
DGS-3627:admin# show dvmrp
Command: show dvmrp
DVMRP Global State : Disabled
Interface
IP Address
Neighbor Timeout
Probe
Metric
State
----------
-----------
---------------
-----
------
-------
System
10.90.90.90/8
35
10
1
Disabled
Zira
12.1.1.1/8
35
10
1
Enabled
Total Entries: 2
DGS-3627:admin#
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35
ETHERNET RING PROTECTION SWITCHING (ERPS)
COMMANDS
ITU-T G.8032 Ethernet Ring protection switching (ERPS) is used to provide a reliable mechanism of malfunction recovery
in an Ethernet ring topology network.
The Ethernet Ring Protection Switching (ERPS) Resolver commands in the Command Line Interface (CLI) are listed
(along with the appropriate parameters) in the following table.
Command
Parameters
enable erps
disable erps
create erps raps_vlan
<vlanid>
delete erps raps_vlan
<vlanid>
config erps raps_vlan
<vlanid> ring mel <value 0-7>
config erps raps_vlan
<vlanid> ring_port [west [<port> | virtual_channel] | east [<port> |
virtual_channel]]
config erps raps_vlan
<vlanid> [ rpl_port [west | east | none] | rpl_owner [enable | disable] ]
config erps raps_vlan
<vlanid> protected_vlan [add | delete] vlanid <vidlist>
config erps raps_vlan
<vlanid> timer {holdoff_time < value 0-10000> | guard_time <value 10-2000> |
wtr_time <min 5-12>} (1)
config erps log
[enable | disable]
show erps
{raps_vlan <vlanid> {sub_ring}}
config erps trap
[enable | disable]
config erps raps_vlan
<vlanid> state [enable | disable]
config erps raps_vlan
<vlanid> [add | delete] sub_ring raps_vlan <vlanid>
config erps raps_vlan
<vlanid> sub_ring raps_vlan <vlanid> tc_propagation state [enable | disable]
Each command is listed, in detail, in the following sections.
enable erps
Purpose
Used to enable the global ERPS function on a switch.
Syntax
enable erps
Description
This command is used to enable the global ERPS function on a switch. When both the global
state and the specified ring ERPS state are enabled, the specified ring will be activated.
The global ERPS function cannot be enabled, when any ERPS ring on the device is enabled
and the integrity of any ring parameter is not available. For each ring with the ring state
enabled when ERPS is enabled, the following integrity will be checked:
R-APS VLAN is created.
The Ring port is a tagged member port of the R-APS VLAN.
The RPL port is specified if the RPL owner is enabled.
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enable erps
The default state is disabled.
Parameters
None.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To enable ERPS:
DGS-3627:admin# enable erps
Command: enable erps
Success.
DGS-3627:admin#
disable erps
Purpose
Used to disable the global ERPS function on a switch.
Syntax
disable erps
Description
This command is used to disable the global ERPS function on a switch.
Parameters
None.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To disable ERPS:
DGS-3627:admin# disable erps
Command: disable erps
Success.
DGS-3627:admin#
create erps raps_vlan
Purpose
Used to create an R-APS VLAN on a switch.
Syntax
create erps raps_vlan <vlanid>
Description
This command is used to create an R-APS VLAN on a switch. Only one R-APS VLAN should
be used to transfer R-APS messages.
Note:
The R-APS VLAN must already have been created by the create vlan command.
Parameters
raps_vlan
- Specifies the VLAN which will be the R-APS VLAN.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To create and ERPS R-APS VLAN:
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DGS-3627:admin# create erps raps_vlan 4094
Command: create erps raps_vlan 4094
Success.
DGS-3627:admin#
delete erps raps_vlan
Purpose
Used to delete an R-APS VLAN on a switch.
Syntax
delete erps raps_vlan <vlanid>
Description
This command is used to delete an R-APS VLAN on a switch. When an R-APS VLAN is
deleted, all parameters related to this R-APS VLAN will also be deleted.
This command can only be issued when the ring is not active.
Parameters
raps_vlan
- Specifies the VLAN which will be the R-APS VLAN.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To delete an ERPS R-APS VLAN:
DGS-3627:admin# delete erps raps_vlan 4094
Command: delete erps raps_vlan 4094
Success.
DGS-3627:admin#
config erps ring_mel
Purpose
Used to configure the MEL of the ERPS ring for a specific R-APS VLAN.
Syntax
config erps raps_vlan <vlanid> ring mel <value 0-7>
Description
This command is used to configure the ring MEL for a R-APS VLAN. The ring MEL is one
field in the R-APS PDU.
Note:
If CFM (Connectivity Fault Management) and ERPS are used at the same time, the R-
APS PDU is one of a suite of Ethernet OAM PDU. The behavior for forwarding of R-APS
PDU should follow the Ethernet OAM. If the MEL of R-APS PDU is not higher than the level
of the MEP with the same VLAN on the ring ports, the R-APS PDU cannot be forwarded on
the ring.
Parameters
ring mel
- Specifies the ring MEL of the R-APS function. The default ring MEL is 1.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To configure a MEL of the ERPS ring:
DGS-3627:admin# config erps raps_vlan 4094 ring mel 2
Command: config erps raps_vlan 4094 ring mel 2
Success.
DGS-3627:admin#
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config erps raps_vlan ring_port
Purpose
Used to configure the ports of the ERPS ring for a specific R-APS VLAN.
Syntax
config erps raps_vlan <vlanid> ring_port [west [<port> | virtual_channel] | east [<port>
| virtual_channel]]
Description
This command is used to configure the port that participates in the ERPS ring. Restrictions
apply for ports that are included in a link aggregation group. A link aggregation group can be
configured as a ring port by specifying the master port of the link aggregation port. Only the
master port can be specified as a ring port. If the specified link aggregation group is
eliminated, the master port retains its ring port status. If the ring port configured on virtual
channel, the ring which the port connects to will be considered as a sub-ring.
Note:
The ring ports cannot be modified when ERPS is enabled.
Parameters
west <port>
- Specifies the port as the west ring port.
virtual_channel
- Specifies the port as west port on virtual channel.
east <port>
- Specifies the port as the east ring port.
virtual_channel
- Specifies the port as east port on virtual channel.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To configure the ports of an ERPS ring for a specific R-APS VLAN:
DGS-3627:admin# config erps raps_vlan 4094
ring_port west 5
Command: config erps raps_vlan 4094
ring_port west 5
Success.
DGS-3627:admin#
config erps raps_vlan rpl
Purpose
Used to configure the RPL port or the RPL owner for a specific R-APS VLAN.
Syntax
config erps raps_vlan <vlanid> [ rpl_port [west | east | none] | rpl_owner [enable |
disable] ]
Description
This command is used to configure the RPL port and the RPL owner.
RPL port:
Specifies one of the R-APS VLAN ring ports as the RPL port. To remove an RPL
port from an R-APS VLAN, use the none designation for rpl_port.
RPL owner:
Specifies the node as the RPL owner.
Note:
The RPL port and RPL owner cannot be modified when ERPS is enabled; and the
virtual channel cannot be configured as RPL. For example, if a ring port is configured on the
virtual channel and the ring port is configured as an RPL port, an error message will be
display and the configuration will fail.
Parameters
port
- See below.
west
- Specifies the west ring port as the RPL port.
east
- Specifies the east ring port as the RPL port.
none
- No RPL port on this node. By default, the node has no RPL port.
owner
- See below.
enable
- Specifies the device as an RPL owner node.
disable
- This node is not an RPL owner. By default, the RPS owner is disabled.
Restrictions
Only Administrator and Operator-level users can issue this command.

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