In the navigation tree Routing view, expand Network→NE→Routing Instance→BGP.

Right-click on the BGP icon and choose Properties.

Click on the General tab and configure the required parameters.

Select a TCP key chain in the KeyChain panel, if required.

Note: You can assign a TCP key chain to a BGP site, group, or peer on a 7450 ESS in mixed mode, 7705 SAR, 7750 SR, or 7950 XRS.

Configure the required parameters in the Optimal Route Reflection Shortest Path First Timers panel.

Configure the required parameters in the Graceful Restart panel.

The graceful restart parameters are configurable when you enable the Graceful Restart parameter.

Configure the required parameters in the MED panel.

The parameters are used to find a way to leave the AS when there are multiple methods of leaving the AS.

Configure the required parameters in the MultiPath panel.

Set the MultiPath parameter to 1 to disable. When set from 2 to 16, multipath is enabled and BGP load shares traffic across the number of links specified. If the equal cost routes available are greater than the configured value, then routes with the lowest next hop IP address are chosen.

Configure the Backup Path parameter in the Backup Path panel.

Configure the required parameters in the Best Path Selection panel.

When you set the MED Compare parameter to off, the Strict parameter is set to true and is not configurable. When you set the MED Compare parameter to on, the Strict parameter is set to false and is not configurable.

To include routes from BGP peers for MVPN IPv4, MVPN IPv6, or both, in RR convergence, set the Ignore Router ID parameter to true and configure the Ignore Router ID Internal parameter.

Configure the required parameters in the OLC panel.

Click on the Behavior tab and configure the required parameters.

Note: You must set the Enable Add-Path Send parameter to True in order to configure the additional Add-Path parameters.

When you configure the Peer Tracking Policy, you can use the Select button to choose a single policy, or click on the Create Expression button to use a logical expression as described in To create a BGP policy expression.

Click on the AS Properties tab and configure the required parameters.

The Local AS parameters are used to configure a virtual AS. A virtual AS is used when a router (RTA) is moved from one AS (AS1) to another AS (AS2). However, the customer router (CR1) is configured to belong to the AS1. To avoid reconfiguring CR1 to belong to AS2, CR1 can continue to belong to AS1, but RTA has its local AS value set to AS1. RTA can advertise AS1 for routes advertised to CR1.

Click on the VPN tab and configure the required parameters.

Note the following:

• If you are configuring global-level BGP for BGP AD in VPLS or for BGP VPLS, you must enable the L2 VPN option for the Family parameter.

• You must set the AS Path Ignore parameter to True in order to configure the AS Path Ignore Family parameters.

• The Apply Import Route Policies and Apply Export Route Policies parameters are not configurable on a VPRN routing instance.

• The Apply Import Route Policies and Apply Export Route Policies parameters specify whether to apply the existing import and export route policies configured on the Import Policies and Export Policies tabs.

• Selecting an address family in the Rapid Update panel reduces the minimum route advertisement interval (MRAI) to zero. Families that are not selected will retain the default MRAI.

Configure next hop resolution:

1. Click on the Next-Hop Resolution tab.

2. Configure the Use BGP Routes, Resolve Label Routes, Allow Static Routes, and Weighted ECMP parameters as applicable.

3. To defer hardware fast-reroute protection to the SR tunnel, enable the Prefer Transport Frr parameter.

4. Select a routing policy statement.

5. Click Create Expression and configure the parameters to add a policy expression.

6. Configure the parameters in the Use Leaked Routes panel.

7. Choose a Shortcut Tunnel and click Properties.

8. Configure the required parameters for the Shortcut Tunnel, save the changes, and close the form.

9. In the Label Route Transport Tunnel panel, choose a family from the available entries and click Properties.

10. Configure the required parameters.

    You can choose segment routing as a tunnel option. Segment routing must be configured if you select the SR-ISIS or SR-OSPF parameters; see Segment routing.

11. Save your changes and close the form.

Configure ORF Extended Community:

1. Configure the Accept ORF parameter.

2. Configure the Send ORF parameter.

   If Send ORF is set to True, provide the RTL details:

   1. Click on the Create button.

   2. Enter site and route target details.

   3. Click OK.

Configure Optimal Route-Reflection:

1. Click on the Optimal Route-Reflection tab.

2. Click Create. The Optimal Route Reflection (Create) form opens.

3. Configure the parameters.

4. Click OK to create an optimal route-reflection location and close the form.

   You can create up to 16 locations.

5. Configure the Cluster ID and Optimal Route-Reflection location parameters on the General tab.

Click on the Segment Routing V6 tab and configure the required parameters.

Add a peer group.

Perform the following steps:

1. Click on the Groups tab and click Create.

2. Perform Step 3 to Step 22 of To configure peer-group-level BGP .

3. Save the changes.

Add a peer.

Perform the following steps:

1. Click on the Peers tab.

2. Click Create.

3. Perform Step 3 to Step 18 of To configure peer-level BGP .

4. Save the changes.

Configure dynamic peer prefixes as required:

1. Click on the Dynamic Peer Prefixes tab.

2. Click Create.

3. Configure the required parameters.

4. Save the changes.

Create a route target list as required:

1. Click on the Route Target List tab.

2. Click Create to create a route target.

3. Configure the required parameters.

4. Save the changes.

Routes with one or more of the route targets in the list are accepted or advertised to route-reflector clients. This is only applicable if the router is a route-reflector server.

Click on the Import Policies and Export Policies tabs and configure the required parameters.

Configure the import route policies to determine which routes are accepted from peers. The policies should match the policies you configure using the Routing Policy Manager, as described in Chapter 27, NE routing and forwarding . There is no validation performed by the router to ensure the policies match.

Configure the export route policies to determine which routes are advertised to peers. The policies should match the policies you configure using the Routing Policy Manager, as described in Chapter 27, NE routing and forwarding . A router performs no validation to ensure the policies match.

You can use the Select button to choose a single policy, or click on the Create Expression button to use a logical expression, as described in To create a BGP policy expression.

Click on the RIB Management tab to assign leak import and export policies:

1. On the IPv4 Leak Import Policies, IPv6 Leak Import Policies, Label IPv4 Leak Import Policies, and Label IPv6 Leak Import Policies tabs, assign up to 15 leak import policies to the BGP site as required.

2. Click on the IPv4 Leak Export Policies tab and assign up to 15 leak export policies to the BGP site.

3. Click on the Route Table Import tab and configure the required parameters.

Click on the Authentication tab and configure the required parameters.

Save your changes and close the forms.

End of steps