To configure global-level BGP
Steps
1 |
In the navigation tree Routing view, expand Network→NE→Routing Instance→BGP. |
2 |
Right-click on the BGP icon and choose Properties. |
3 |
Click on the General tab and configure the required parameters. |
4 |
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. |
5 |
Configure the required parameters in the Optimal Route Reflection Shortest Path First Timers panel. |
6 |
Configure the required parameters in the Graceful Restart panel. The graceful restart parameters are configurable when you enable the Graceful Restart parameter. |
7 |
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. |
8 |
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. |
9 |
Configure the Backup Path parameter in the Backup Path panel. |
10 |
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. |
11 |
Configure the required parameters in the OLC panel. |
12 |
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. |
13 |
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. |
14 |
Click on the VPN tab and configure the required parameters. Note the following:
|
15 |
Configure next hop resolution:
|
16 |
Configure ORF Extended Community: |
17 |
Configure Optimal Route-Reflection:
|
18 |
Click on the Segment Routing V6 tab and configure the required parameters. |
19 |
Add a peer group. Perform the following steps:
|
20 |
Add a peer. Perform the following steps:
|
21 |
Configure dynamic peer prefixes as required: |
22 |
Create a route target list as required: 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. |
23 |
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. |
24 |
Click on the RIB Management tab to assign leak import and export policies:
|
25 |
Click on the Authentication tab and configure the required parameters. |
26 |
Save your changes and close the forms. End of steps |