Contents

• Access Switch Device Manager Template Configuration on the Cisco ASR 903 Router
• Prerequisites for the SDM Template
• Restrictions for the SDM Template
• SDM Template
• Selecting the SDM Template
• Verifying the SDM Template

Access Switch Device Manager Template Configuration on the Cisco ASR 903 Router

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This chapter provides information about the Access Switch Device Manager (SDM) Template for the route switch processor (RSP1A) on the Cisco ASR 903 Router.

Note	For complete syntax and usage information for the commands used in this chapter, see the command reference for this release.

• Prerequisites for the SDM Template
• Restrictions for the SDM Template
• SDM Template
• Selecting the SDM Template
• Verifying the SDM Template

Selecting the SDM Template

Enables privileged EXEC mode.

• Enter your password if prompted.

1. Router# configure terminal

   
   Router# configure terminal
   

Enters global configuration mode.

1. Router(config)# sdm prefer {default | ip | mvpn_rsp1a | video}

   
   Router(config)# sdm prefer default
   

Specifies the SDM template to be used on the router:

• default—Balances all functions.
• ip—Increases IPv4/VPNv4 routes.
• mvpn_rsp1a—Supports MVPN.
• video—Increases multicast routes and ACLs.

Note	When changing the SDM template, the router waits for two minutes before reloading. Do not perform any operation till the router reloads.

Note	For the new SDM template to take effect, you must save and reload the new configuration, otherwise the current SDM template is retained.

Note	After the system reboots, you can use the show sdm prefer current command in the privileged EXEC mode to verify the new SDM template configuration.

SUMMARY STEPS

1.    Router > enable

DETAILED STEPS

	Command or Action	Purpose
Step 1	Router > enable Example: Router> enable

Contents

• Access Switch Device Manager Template Configuration on the Cisco ASR 903 Router
• Prerequisites for the SDM Template
• Restrictions for the SDM Template
• SDM Template
• Selecting the SDM Template
• Verifying the SDM Template

Access Switch Device Manager Template Configuration on the Cisco ASR 903 Router

---

This chapter provides information about the Access Switch Device Manager (SDM) Template for the route switch processor (RSP1A) on the Cisco ASR 903 Router.

Note	For complete syntax and usage information for the commands used in this chapter, see the command reference for this release.

• Prerequisites for the SDM Template
• Restrictions for the SDM Template
• SDM Template
• Selecting the SDM Template
• Verifying the SDM Template

Prerequisites for the SDM Template

• Before using an SDM template, you must set the license boot level.

Restrictions for the SDM Template

• You cannot edit individual values in a template category as all templates are predefined.
• You cannot use a new SDM template without reloading the router.
• SDM templates are supported only by the Metro Aggregation Services license. Use the help option of the sdm prefer command to display the supported SDM templates.
• A mismatch in an SDM template between an active RSP and standby RSP results in a reload of the standby RSP. During reload, SDM template of the standby RSP synchronizes with the SDM template of the active RSP.
• To revert to the current SDM template after issuing the sdm prefer command to initiate reload of a new SDM template, you must wait for the reload to complete.
• Using the configure replace command which results in changes in the current SDM template is not supported.
• The supported group numbers are for scaling in uni-dimension. When scaling in multi-dimension, the numbers can vary as certain features may share resources.

SDM Template

The SDM templates are used to optimize system resources in the router to support specific features, depending on how the router is used in the network. The SDM templates allocate Ternary Content Addressable Memory (TCAM) resources to support different features. You can use the SDM templates to optimize resources for different features. You can select the default template to balance system resources or select specific templates to support the required features.

Table below shows the approximate number of each resource supported in each of the templates for a router running the Metro Aggregation Services license.

Table 1 Approximate Number of Feature Resources Allowed by Each SDM Template

Resource	IP template	Video template
MAC table	16000	16000
Virtual local area network (VLAN) mapping	4000	4000
IPv4 routes 1	24000	12000
IPv6 routes 2	4000	4000
VPNv4 routes	24000	12000
VPNv6 routes	4000	4000
IPv4 multicast routes (mroutes)	1000	2000
Layer 2 multicast groups	1000	2000
Bridge Domains (BD)	4094	4094
MAC-in-MAC	0	0
Ethernet over Multiprotocol Label Switching (EoMPLS) tunnels	512	512
MPLS Virtual Private Network (VPN)	128	128
Virtual Routing and Forwarding (VRF) lite	128	128
Virtual Private LAN Services (VPLS) instances	26	26
Access Control List (ACL) entries	2000	4000
Queues per Application-Specific Integrated Circuit (ASIC)	2048	2048
IPv4 Quality of Service (QoS) classifications	4096	2048
Policers	1024	1024
Ethernet Operations, Administration, and Maintenance (OAM) sessions	1000	1000
IP Service Level Agreements (IPSLA) sessions	1000	1000
Ethernet Flow Point (EFP)	4000	4000
Maximum VLANs per port	4094	4094
Maximum I-TAG per system	500	500
Maximum Virtual Private LAN Services (VPLS) neighbors	62	62
Maximum attachment circuit per BD	62	62
STP Instances	16	16
Maximum Etherchannel groups	26	26
Maximum Interfaces per Etherchannel groups	8	8
Maximum Hot Standby Router Protocol (HSRP)/Virtual Router Redundancy Protocol (VRRP)	128	128
Maximum Ingress MPLS labels	16000	16000
Maximum Egress MPLS labels	28500	28500
Maximum Fast Reroute (FRR)/Traffic Engineering (TE) headend	512	512
Maximum FRR/TE midpoints	5000	5000
Maximum Enhanced Local Management Interface (E-LMI) sessions	1000	1000
Maximum Bidirectional Forwarding Detection (BFD) sessions	511	511
Maximum Switched Port Analyzer (SPAN)/Remote SPAN (RSPAN) sessions	32	32
Maximum Queue counters (packet & byte)	65536	65536
Maximum Policer counters (packet & byte)	49152	49152
Max number of BDI for Layer 3	256	256
IPv6 ACL	1000	1000
IPv6 QoS classification	4096	2048

¹ Using IPv4 and VPNv4 routes concurrently reduces the maximum scaled value as both the routes use the same TCAM space.

² User available routes are 3967.

³ Due to label space limitation of 16000 VPNv4 routes, to achieve 24000 VPNv4 routes in IP template use per VRF mode.

⁴ Using Layer 2 and Layer 3 multicast groups concurrently reduces the scale number to 1947.

⁵ ACLs contend for TCAM resources with Multicast Virtual Private Network (MVPN).

Selecting the SDM Template

Enables privileged EXEC mode.

• Enter your password if prompted.

1. Router# configure terminal

   
   Router# configure terminal
   

Enters global configuration mode.

1. Router(config)# sdm prefer {default | ip | mvpn_rsp1a | video}

   
   Router(config)# sdm prefer default
   

Specifies the SDM template to be used on the router:

• default—Balances all functions.
• ip—Increases IPv4/VPNv4 routes.
• mvpn_rsp1a—Supports MVPN.
• video—Increases multicast routes and ACLs.

Note	When changing the SDM template, the router waits for two minutes before reloading. Do not perform any operation till the router reloads.

Note	For the new SDM template to take effect, you must save and reload the new configuration, otherwise the current SDM template is retained.

Note	After the system reboots, you can use the show sdm prefer current command in the privileged EXEC mode to verify the new SDM template configuration.

SUMMARY STEPS

1.    Router > enable

DETAILED STEPS

	Command or Action	Purpose
Step 1	Router > enable Example: Router> enable

Verifying the SDM Template

You can use the following show commands to verify configuration of your SDM template:

show sdm prefer current— Displays information about the active SDM template.

The following example shows output from the show sdm prefer current command:

Router# show sdm prefer current

The current template is "video" template.

show sdm prefer—Displays the resource numbers supported by the specified SDM template.

show platform hardware pp active sdm current—Displays the scale numbers for your current SDM template.