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Example: Configuring CoS Queuing for GRE or IP-IP Tunnels
This example shows how to configure CoS queuing for GRE or IP-IP tunnels.
CoS queuing is not supported on GRE tunnels in chassis clusters.
Requirements
Before you begin:
Establish a main office and a branch office connected by a VPN using GRE or IP-IP tunneled interfaces.
Configure forwarding classes and schedulers. See Example: Assigning Forwarding Classes to Output Queues and Example: Configuring Class-of-Service Schedulers on a Security Device.
Configure a scheduler map and apply the scheduler map to the tunnel interface. See Example: Configuring and Applying Scheduler Maps.
Configure classifiers and apply them to the tunnel interface. See Example: Configuring Behavior Aggregate Classifiers.
Create rewrite rules and apply them to the tunnel interface. See Example: Configuring and Applying Rewrite Rules on a Security Device.
Overview
In this example, you enable tunnel queuing, define the GRE tunnel interface as gr-0/0/0, (Alternatively, you could define the IP-IP tunnel interface as ip-0/0/0.) and set the per unit scheduler. You then set the GRE tunnel’s line rate as 100 Mbps by using the shaper definition.
In Figure 1, Router A has a GRE tunnel established with Router B through interface ge-1/0/0. Router A also has an IP-IP tunnel established with Router C through interface ge-1/0/1. Router A is configured so that tunnel-queuing is enabled. Router B and Router C do not have tunnel-queuing configured.
Configuration
CLI Quick Configuration
To quickly configure this example, copy the following commands, paste them into a text file, remove any line breaks, change any details necessary to match your network configuration, copy and paste the commands into the CLI at the [edit] hierarchy level, and then enter commit from the configuration mode.
Step-by-Step Procedure
To configure CoS queuing for GRE tunnels:
- Enable tunnel queuing on the device.[edit]user@host# set chassis fpc 0 pic 0 tunnel-queuing
- Define the GRE tunnel interface.[edit]user@host# set interfaces gr-0/0/0 unit 0
- Define the per-unit scheduler for the GRE tunnel interface.[edit]user@host# set interfaces gr-0/0/0 per-unit-scheduler
- Define the GRE tunnel’s line rate by using the shaper
definition.[edit]user@host# set class-of-services interfaces gr-0/0/0 unit 0 shaping-rate 100m
Results
From configuration mode, confirm your configuration by entering the show class-of-service interfaces gr-0/0/0, show interfaces gr-0/0/0 , and show chassis commands. If the output does not display the intended configuration, repeat the configuration instructions in this example to correct it.
If you are done configuring the device, enter commit from configuration mode.
Verification
Confirm that the configuration is working properly.
Verifying a CoS Queuing for GRE Tunnel Configuration
Purpose
Verify that the device is configured properly for tunnel configuration.
Action
From configuration mode, enter the show interfaces queue gr-0/0/0.0 command.
If you enter gr-0/0/0.0 only, queue information for all tunnels is displayed. If you enter gr-0/0/0.0, queue information for the specific tunnel is displayed.
user@host> show interfaces queue gr-0/0/0.0Logical interface gr-0/0/0.0 (Index 68) (SNMP ifIndex 112)
Forwarding classes: 8 supported, 4 in use
Egress queues: 8 supported, 4 in use Burst size: 0
Queue: 0, Forwarding classes: VOICE
Queued:
Packets : 7117734 7998 pps
Bytes : 512476848 4606848 bps
Transmitted:
Packets : 4548146 3459 pps
Bytes : 327466512 1992912 bps
Tail-dropped packets : 0 0 pps
RED-dropped packets : 2569421 4537 pps
Low : 0 0 pps
Medium-low : 0 0 pps
Medium-high : 0 0 pps
High : 2569421 4537 pps
RED-dropped bytes : 184998312 2613640 bps
Low : 0 0 bps
Medium-low : 0 0 bps
Medium-high : 0 0 bps
High : 184998312 2613640 bps
Queue: 1, Forwarding classes: GOLD
Queued:
Packets : 117600 0 pps
Bytes : 8467200 0 bps
Transmitted:
Packets : 102435 0 pps
Bytes : 7375320 0 bps
Tail-dropped packets : 0 0 pps
RED-dropped packets : 15165 0 pps
Low : 0 0 pps
Medium-low : 0 0 pps
Medium-high : 0 0 pps
High : 15165 0 pps
RED-dropped bytes : 1091880 0 bps
Low : 0 0 bps
Medium-low : 0 0 bps
Medium-high : 0 0 bps
High : 1091880 0 bps
Queue: 2, Forwarding classes: SILVER
Queued:
Packets : 0 0 pps
Bytes : 0 0 bps
Transmitted:
Packets : 0 0 pps
Bytes : 0 0 bps
Tail-dropped packets : 0 0 pps
RED-dropped packets : 0 0 pps
Low : 0 0 pps
Medium-low : 0 0 pps
Medium-high : 0 0 pps
High : 0 0 pps
RED-dropped bytes : 0 0 bps
Low : 0 0 bps
Medium-low : 0 0 bps
Medium-high : 0 0 bps
High : 0 0 bps
Queue: 3, Forwarding classes: BRONZE
Queued:
Packets : 0 0 pps
Bytes : 0 0 bps
Transmitted:
Packets : 0 0 pps
Bytes : 0 0 bps
Tail-dropped packets : 0 0 pps
RED-dropped packets : 0 0 pps
Low : 0 0 pps
Medium-low : 0 0 pps
Medium-high : 0 0 pps
High : 0 0 pps
RED-dropped bytes : 0 0 bps
Low : 0 0 bps
Medium-low : 0 0 bps
Medium-high : 0 0 bps
High : 0 0 bps
Verifying a CoS Queuing for IP-IP Tunnel Configuration
Purpose
Verify that the device is configured properly for tunnel configuration.
Action
From configuration mode, enter the show interfaces queue ip-0/0/0.0 command.
If you enter ip-0/0/0.0 only, queue information for all tunnels is displayed. If you enter ip-0/0/0.0, queue information for the specific tunnel is displayed.