How to configure the route for the out-of-band network management on an S series switch

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The management ports of S series switches are designed for management. When out-of-band network management is used, do not configure a default route to the gateway for out-of-band network management. In this way, the management ports will not receive user service data and save CPU resources. It is recommended that you configure a host route or a specific route when out-of-band network management is used.

Other related questions:
Routing configuration problem of out-of-band network management of S series switches
S series switches are designed for management purpose. When using out-of-band network management, it is common to avoid configuring the default route to the gateway address of the out-of-band network management. this is to prevent to pull user business data into the management network port, resulting in the CPU of the device. When using the outband network management, it is generally recommended to configure the host route or the detailed route.

In-band management and out-of-band management and differences between out-of-band management and in-band management
Differences between the in-band management and out-of-band management: FAQ-What is out-of-band management or inband management, and what are their differences

Out-of-band management concept
The management control data of a storage device is transferred on a different link from the service data. In a typical connection, the maintenance terminal connects to the management network port or serial port of the storage device to manage the device, and the application server connects to the service network port of the storage device to transmit service data. The two links are independent of each other. The management mode described in the Product Documentation and Configuration Guide is the out-of-band mode.

Difference between the inband management and out-of-band management
The differences of these two management modes lie in: Reliability: In out-of-band mode, when the service link is faulty, you can still log in to and manage the storage device by using the management link. Management mode: In out-of-band mode, either the ISM or CLI can be used for management. In inband mode, only the ISM can be used. Networking: In inband mode, management data and service data share the same link. Therefore, the number of network cables is reduced. Functions: In inband mode, the application server collaborates with the storage device. In some cases, the performance of the storage device is enhanced.

Can public network routes be iterated to tunnels on S series switches
Q: Can public network routes be iterated to tunnels? A: For S series switches, by default, an unlabeled public network route can only be iterated to the outbound interface and next hop, but not a tunnel. If the route recursive-lookup tunnel command is executed, an unlabeled public network route can inherit the tunnel ID of an IGP or static route, allowing packets to be forwarded through MPLS routes. The route recursive-lookup tunnel command enables the switch to iterate unlabeled public network routes to tunnels. This command is valid only to unlabeled public network routes that require tunnel iteration. To control tunnel iteration more precisely, you can filter unlabeled public network routes by specifying an optional IP prefix list. The undo route recursive-lookup tunnel command disables tunnel iteration.

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