Dual Ipv4 And Ipv6 Sdm Templates - Cisco Catalyst 3750-E Software Configuration Manual

Understanding the SDM Templates
Table 8-1
Resource
Unicast MAC addresses
IGMP groups and multicast routes
Unicast routes
•
•
Policy-based routing ACEs
QoS classification ACEs
Security ACEs
VLANs
The first eight rows in the tables (unicast MAC addresses through security ACEs) represent approximate
hardware boundaries set when a template is selected. If a section of a hardware resource is full, all
processing overflow is sent to the CPU, seriously impacting switch performance. The last row is a
guideline used to calculate hardware resource consumption related to the number of Layer 2 VLANs on
the switch.

Dual IPv4 and IPv6 SDM Templates

The dual IPv4 and IPv6 templates allow the switch to be used in dual stack environments, supporting
both IPv4 and IPv6 traffic. For more information about IPv6 and how to configure IPv6 unicast routing,
see
This software release does not support IPv6 multicast routing. It also does not support policy-based
routing (PBR) when forwarding IPv6 traffic. The software supports IPv4 PBR only when the
dual-ipv4-and-ipv6 routing template is configured.
Using the dual stack templates results in less hardware capacity allowed for each resource. Do not use
them if you plan to forward only IPv4 traffic. These SDM templates support IPv4 and IPv6
environments:
•
•
•
Note
You must reload the switch with the dual IPv4 and IPv6 templates for switches running IPv6.
Table 8-2
Template estimations are based on a switch with 8 routed interfaces and 1024 VLANs.
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
8-2
Approximate Number of Feature Resources Allowed by Each Template
Directly connected hosts
Indirect routes
Chapter 41, "Configuring IPv6 Unicast Routing."
Dual IPv4 and IPv6 default template—supports Layer 2, multicast, routing, QoS, and ACLs for
IPv4; and Layer 2, routing, ACLs, and QoS for IPv6 on the switch.
Dual IPv4 and IPv6 routing template—supports Layer 2, multicast, routing (including policy-based
routing), QoS, and ACLs for IPv4; and Layer 2, routing, ACLs, and QoS for IPv6 on the switch.
Dual IPv4 and IPv6 VLAN template—supports basic Layer 2, multicast, QoS, and ACLs for IPv4,
and basic Layer 2, ACLs, and QoS for IPv6 on the switch.
Cisco IOS Release 12.2(46)SE and later supports IPv6 port-based trust with the dual IPv4 and
IPv6 SDM templates.
defines the approximate feature resources allocated by each dual IPv4 and IPv6 template.
Chapter 8
Access Default
4 K 6 K
1 K 1 K
6 K 8 K
4 K 6 K
2 K 2 K
0.5 K 0
0.5 K 0.5 K
2 K 1 K
1 K 1 K
Configuring SDM Templates
Routing VLAN
3 K 12 K
1 K 1 K
11 K 0
3 K 0
8 K 0
0.5 K 0
0.5 K 0.5 K
1 K 1 K
1 K 1 K
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