What is policy-based routing?
Policy-based routing is a process whereby the device puts packets through a route map before routing them. The route map determines which packets are routed to which device next. You might enable policy-based routing if you want certain packets to be routed some way other than the obvious shortest path.
How do you set up a policy route?
How to Configure PBR (Policy-Based Routing)?
- Step1: Configure ACLs. Permit statement in ACL is what will be matched.
- Step2: Configure route map instances.
- Step3: Configure match commands.
- Step4: Configure set commands.
- Step5: Configure PBR on the interface.
- Step6: (Optional) Configure local PBR.
What is feature PBR?
feature pbr. Example: switch(config)# feature pbr. Enables the policy-based routing feature.
Does Nexus support STP?
Cisco Nexus switches enable Spanning Tree Protocol (STP) by default on all interfaces in every VLAN.
Why is PBR used?
The goal of PBR is to make the network as agile as possible. By defining routing behavior based on application attributes, PBR provides flexible, granular traffic-handling capabilities for forwarding packets.
What is Bridge assurance in Nexus?
–> Bridge Assurance is one of the STP features that is used to avoid switching loops in your network. –> When bridge assurance is configured on the switch then BPDUs are sent on all interfaces of the switch, including blocked interfaces like the alternate or backup port.
How does STP work in vPC?
STP Behavior in vPC: vPC system is created to avoid the STP blocked ports and hence provide the loop free layer -2 topology. In vPC STP provide the following function: Protect the Layer 2 network by detection and breaking any loops before vPC configuration. Provides the loop free path for non-vPC attached device.
What is policy based VPN?
A policy-based VPN is a configuration in which an IPsec VPN tunnel created between two end points is specified within the policy itself with a policy action for the transit traffic that meets the policy’s match criteria.
Which protocol is policy routing protocol?
Policy-based routing (PBR) is a technique that forwards and routes data packets based on policies or filters.
What is policy-based routing in Cisco switches?
Note Policy-based routing is specified on the interface that receives the packets, not on the interface from which the packets are sent. The Cisco Nexus 9000 Series switches support the following set commands for route maps used in policy-based routing: set {ip | ipv6} next-hop address1 [address2…] [load-share]
What are the Configuration Guidelines and limitations of policy-based routing?
Policy-based routing has the following configuration guidelines and limitations: A policy-based routing route map can have only one match or set statement per route-map statement. A match command cannot refer to more than one ACL in a route map used for policy-based routing.
What are the licensing requirements for policy-based routing?
Policy-based routing requires an Enterprise Services license. Any feature not included in a license package is bundled with the nx-os image and is provided at no extra charge to you. For a complete explanation of the Cisco NX-OS licensing scheme, see the Cisco NX-OS Licensing Guide. Policy-based routing has the following prerequisites:
