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show protection-group ethernet-ring configuration

 

Syntax

Release Information

Command introduced in Junos OS Release 12.1 for EX Series switches.

Command introduced in Junos OS Release 14.1 for MX Series routers.

Command introduced in Junos OS Release 18.1 for EX2300 and EX3400 switches.

Description

Display the configuration of Ethernet ring protection group on EX Switches and MX Series routers.

Required Privilege Level

view

List of Sample Output

show protection-group ethernet-ring configuration (EX Switch)

show protection-group ethernet-ring configuration detail (MX Series Router)

show protection-group ethernet-ring configuration (MX Series Router)

show protection-group ethernet-ring configuration detail (MX Series Router)

show protection-group ethernet-ring configuration detail (MX Series Router)

show protection-group ethernet-ring configuration (MX Series Router)

show protection-group ethernet-ring configuration detail (MX Series Router)

Output Fields

Table 1 lists the output fields for the show protection-group ethernet-ring configuration command. Output fields are listed in the approximate order in which they appear.

Table 1: show protection-group ethernet-ring configuration Output Fields

Output Fields

Field Description

G8032 Compatability Version

This is the compatibility version mode of ERP. This parameter always takes the value 1 in the case of G8032v1. This parameter is valid only for MX Series routers.

East Interface

One of the two switch interfaces that participates in a ring link. When Junos supports G8032v2, this interface is treated as interface 0.

West Interface

One of the two interfaces in a switch that participates in a ring link. When Junos supports G8032v2, this interface is treated as interface 1.

Restore Interval

Configured interval of wait time after a link is restored. When a link goes down, the RPL link is activated. When the down link becomes active again, the RPL owner receives a notification. The RPL owner waits for the restore interval before issuing a block on the RPL link. The configured restore interval can be 5 through 12 minutes for ERPv1 and 1 through 12 minutes for ERPv2. This configuration is a global configuration and applies to all Ethernet rings if the Ethernet ring does not have a more specific configuration for this value. If no parameter is configured at the protection group level, the global configuration of this parameter uses the default value.

Note: Wait to Restore (WTR) configuration values on EX2300 and EX3400 switches must be 5-12 minutes.

Wait to Block Interval

Configured interval of wait time for link restoration when a manual command (manual switch or force switch) is cleared. On clearing the manual command, the RPL owner receives NR messages, which starts a timer with interval ‘Wait to Block’ to restore the RPL link after its expiration. This delay timer is set to be 5 seconds longer than the guard timer. The configured number can be from 5 seconds through 10 seconds. The parameter is valid only for G.8032v2.

Note: The Wait To Block Timer (WTB) is always disabled on EX2300 and EX3400 switches because it is not supported in ERPSv1. Any configuration you make to the WTB setting has no effect. The output from the CLI command 'show protection-group ethernet-ring node-state detail' lists a WTB setting but that setting has no effect.

Guard Interval

Configured number of milliseconds (in 10 millisecond intervals, 10 milliseconds through 2000 milliseconds) that the node does not process any Ethernet ring protection protocol data units (PDUs). This configuration is a global configuration and applies to all Ethernet rings if the Ethernet ring does not have a more specific configuration for this value. If no parameter is configured at the protection group level, the global configuration of this parameter uses the default value.

Hold off interval

This is the interval at which the link is held down even before declaring that the link is down. Because the parameter is not supported at present, its value is always considered 0. This parameter is valid only for MX Series routers.

Node ID

Node ID for the switch or router. If the node ID is not configured, it is assigned by default. For EX Series switches, the Node ID value cannot be configured, whereas for MX Series routers, it can be configured.

Ring ID

In G8032v2, the ring ID can be within the range 1–239. All the nodes in a ring should have the same ring ID. In the case of G8032v1, the value of the ring ID is always 1. This parameter is valid only for MX Series routers.

Node Role

Indicates whether the ring node is operating as a normal ring-node or RPL-owner or RPL-neighbor. For G8032v1 RPL-neighbor role is not supported. This parameter is valid only for MX Series routers.

Revertive Mode of Operation

This parameter indicates whether the ring is operating in revertive mode or nonrevertive mode. In nonrevertive mode of operation, when all links in the ring and Ethernet Ring Nodes have recovered and no external requests are active, the Ethernet Ring does not automatically revert. G8032v1 supports only revertive mode of operation. This parameter is valid only for MX Series routers.

RAPS Tx Dot1p priority

The RAPS Tx Dot1p priority is a parameter with which the RAPS is transmitted from the ring node. For G8032v1, the value of this parameter is always 0. For G8032v2, the value of this parameter can be within the range 0–7. This parameter is valid only for MX Series routers.

Node type

Indicates whether ring node is a normal ring node having two ring-links or a open ring-node having only a single ring-link or a interconnection ring-node. An interconnection ring node can be connected to major ring in non virtual-channel mode or in virtual channel mode. Ring interconnection is not supported for G8032v1. This parameter is valid only for MX Series routers.

Major ring name

If the node type is interconnection in the ring, this parameter takes the name of the major ring to which the sub-ring node is connected. This parameter is valid only for MX Series routers.

Interconnection mode

Indicates the interconnection mode if the type of the node is interconnection. An interconnection ring node can be connected to major ring in non-virtual channel mode or in virtual channel mode. This parameter is valid only for MX Series routers.

Propagate Topology Change event

When Propagate Topology Change event is set to 1, the change in the topology of sub-ring is propagated to the major ring, enabling the transmission of EVENT FLUSH RAPS PDU in the major ring. When the parameter is set to 0, the topology change in the sub-ring is not propagated to the major ring blocking EVENT FLUSH RAPS PDU transmission in the major ring. This parameter is valid only for MX Series routers.

Control Vlan

The VLAN that transfers ERP PDUs from one node to another.

Physical Ring

Physical ring if the east and west interfaces are nontrunk ports. For MX Series routers, the ring is termed a physical ring if no data channels are defined for the ring and the entire physical port forwarding is controlled by ERP.

Data Channel VLAN(s)

Data VLANs for which forwarding behavior is controlled by the ring instance.

Sample Output

show protection-group ethernet-ring configuration (EX Switch)

user@switch>show protection-group ethernet-ring configuration

show protection-group ethernet-ring configuration detail (MX Series Router)

user@switch>show protection-group ethernet-ring configuration detail

show protection-group ethernet-ring configuration (MX Series Router)

user@switch>show protection-group ethernet-ring configuration

show protection-group ethernet-ring configuration detail (MX Series Router)

user@switch>show protection-group ethernet-ring configuration detail

show protection-group ethernet-ring configuration detail (MX Series Router)

user@switch>show protection-group ethernet-ring configuration detail

show protection-group ethernet-ring configuration (MX Series Router)

user@switch>show protection-group ethernet-ring configuration

show protection-group ethernet-ring configuration detail (MX Series Router)

user@switch>show protection-group ethernet-ring configuration detail