Configuring Traffic Forwarding Modes; Information About Warp Mode; Guidelines And Limitations For Warp Mode - Cisco Nexus 3548 series Configuration Manual

Configuring Traffic Forwarding Modes

This chapter contains the following sections:
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Information About Warp Mode

The Cisco Nexus device uses a hardware component called the Algorithm Boost Engine (Algo Boost Engine)
to support a forwarding mechanism, called warp mode. In warp mode, the access path is shortened by
consolidating the forwarding table into single table, resulting in faster processing of frames and packets. In
warp mode, latency is reduced by up to 20 percent. For more information about the Algo Boost Engine, see
Active Buffer Monitoring Overview, on page

Guidelines and Limitations for Warp Mode

Warp mode has the following configuration guidelines and limitations:
• Warp mode provides up to 20 percent better switch latency than normal forwarding.
• In warp mode, unicast route tables are reduced. The route table is reduced from 24000 to 4000 entries.
• In warp mode, the following features are not supported:
Information About Warp Mode, on page 177
Guidelines and Limitations for Warp Mode, on page 177
Enabling and Disabling Warp Mode, on page 178
Verifying Warp Mode Status, on page 178
Feature History for Warp Mode, on page 179
The host table and MAC table are reduced from 64000 to 8000 entries. (The multicast route table remains
the same at 8000 entries.)
• Egress Routed Access Control Lists (RACLs)
• Port Access Control Lists (PACLs)
• Equal-cost Multipathing (ECMP)
• IP Redirect
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