CISCO Redundant Root Access Point RAP Ethernet Daisy Chaining User Guide
- June 15, 2024
- Cisco
Table of Contents
CISCO Redundant Root Access Point RAP Ethernet Daisy Chaining
Product Information
Specifications
- Product Name: Redundant Root Access Point (RAP) Ethernet Daisy Chaining
- Supported Model: IW6300 AP
- Supported Configuration: Cisco IOS access points only
- Supported Uplink: Wired uplink configuration
Overview of Redundant RAP Ethernet Daisy Chaining
The Redundant RAP Ethernet Daisy Chaining feature allows for the connection of multiple Cisco IOS access points in a daisy chain topology. This feature is supported on the IW6300 AP model. In case of an uplink loss on the first RAP connected to the switch, the entire chain loses its uplink. To improve recovery time, if the RAP ethernet daisy chain is enabled, the CAPWAP data keepalive is extended to three times.
Prerequisites for Redundant RAP Ethernet Daisy Chaining Support
- The daisy chain strict RAP configuration is applicable to Cisco IOS access points only.
- The AP should be configured in Bridge or Flex Bridge mode Root AP.
Configuring Redundant RAP Ethernet Daisy Chaining Support (CLI)
Follow the procedure given below to enable redundant RAP ethernet daisy chaining on a mesh profile:
- Enter global configuration mode:
configure terminal - Create a mesh profile and enter mesh profile configuration mode:
wireless profile mesh profile-name - Configure daisy chain STP redundancy:
daisychain-stp-redundancy
Verifying Daisy Chain Redundancy (CLI)
To verify the ethernet daisy chain summary, use the following command: show wireless mesh ethernet daisy-chain summary
To verify the ethernet daisy chain Bridge Group Name (BGN) details, use the
following command: show wireless mesh ethernet daisy-chain bgn
To verify the mesh profile, use the following command:
show wireless profile mesh detailed profile-name
FAQ (Frequently Asked Questions)
Q: Which access point models support Redundant RAP Ethernet Daisy
Chaining?
A: The Redundant RAP Ethernet Daisy Chaining feature is supported on the
IW6300 AP model.
Q: Can I use wireless uplink configuration for Redundant RAP Ethernet Daisy
Chaining?
A: No, only wired uplink configuration is valid for Redundant RAP
Ethernet Daisy Chaining.
Q: What happens if there is an uplink loss on the first RAP connected to
the switch in a daisy chain topology?
A: If a CAPWAP loss occurs on the first RAP connected to the switch, the
entire chain loses its uplink. Recovery time is improved when the RAP ethernet
daisy chain is enabled, as the CAPWAP data keepalive is extended to three
times.
Redundant Root Access Point (RAP) Ethernet Daisy Chaining
- Overview of Redundant RAP Ethernet Daisy Chaining, on page 1
- Prerequisites for Redundant RAP Ethernet Daisy Chaining Support, on page 2
- Configuring Redundant RAP Ethernet Daisy Chaining Support (CLI), on page 2
- Verifying Daisy Chain Redundancy (CLI), on page 2
Overview
Overview of Redundant RAP Ethernet Daisy Chaining
The Root Access Point (RAP) Ethernet Daisy Chaining is a feature where RAPs
are chained using wired Ethernet to avoid latency in backhaul link failure
recovery.
This feature proposes a redundancy in the daisy chain, wherein, two switches
act as a redundant Designated
Port (DP), each connected to either end of the daisy chain. In case of a link
failure, the link direction is reversed using a new STP root.
A redundant RAP ethernet daisy chain has similiar capabilities to the existing
mesh daisy chain feature. In a redundant RAP ethernet daisy chain topology,
the packet is encapsulated with CAPWAP header and forwarded to the controller
from its wireless client for each AP. The packet is bridged to its primary
ethernet interface from its secondary ethernet interface including the other
AP’s wireless client CAPWAP packets. Both 2.4G and 5G radio are used for
client access.
Note The daisy chain strict RAP configuration is applicable to Cisco IOS access points only.
Redundant RAP ethernet daisy chain is supported on the IW6300 AP model.
In case of ethernet daisy chain topology, if a CAPWAP loss occurs on the first
RAP connected to switch, the ntire chain loses its uplink. This takes a long
time to recover. Thereby, if the RAP ethernet daisy chain is enabled, the
CAPWAP data keepalive is extended to three times.
Note Only wired uplink configuration is valid, if you configure an AP as Bridge or Flex Bridge mode Root AP.
Prerequisites for Redundant RAP Ethernet Daisy Chaining Support
- Ethernet bridging on should be enabled.
- Strict-wired-uplink feature should be enabled.
Configuring Redundant RAP Ethernet Daisy Chaining Support (CLI)
Follow the procedure given below to enable redundant RAP ethernet daisy chaining on a mesh profile:
Procedure
| Command or Action | Purpose | |
|---|---|---|
| Step 1 | configure terminal |
Example:
Device# configure terminal
| Enters global configuration mode.
Step 2| wireless profile mesh profile-name
Example:
Device(config)# wireless profile mesh default-mesh-profile
| Configures a mesh profile and enters mesh profile configuration mode.
Step 3| daisychain-stp-redundancy
Example:
Device(config-wireless-mesh-profile)#
daisychain-stp-redundancy
| Configures daisy chain STP redundancy.
Verifying Daisy Chain Redundancy (CLI)
To verify the ethernet daisy chain summary, use the following command:
To verify the ethernet daisy chain Bridge Group Name (BGN) details, use the following command:
To verify the mesh profile, use the following command:
Redundant Root Access Point (RAP) Ethernet Daisy Chaining
Prerequisites for Redundant RAP Ethernet Daisy Chaining Support
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