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420 Nokia Network Voyager for IPSO 4.0 Reference Guide
To configure MED Values for all peers of AS200
1. Click BGP under Configuration > Routing Configuration in the tree view.
2. Configure EBGP peers in AS100 and AS200 according to the “BGP Neighbors Example.”
3. Click Advanced BGP Options link on the main BGP page.
This action takes you to the Advanced Options for BGP page.
4. Go to the configuration section for the AS4 routing group. Enter
100 in the MED text box
for the AS4 routing group.
Setting a MED value here propagates updates from all peers of AS4 with this MED value.
Note
Setting an MED value for all peers under the local AS overwrites the default MED setting of
the respective internal peers.
To configure MED Values for each external BGP peer for Nokia Platform D
1. Click BGP under Configuration > Routing Configuration in the tree view.
2. Configure EBGP peers in AS100 and AS200 according to the “BGP Neighbors Example.”
3. Click the link for the peer IP address for Nokia Platform A under AS100.
4. Enter 100 in the MED sent out text box.
5. Click on in the Accept MED from external peer field; then click Apply.
6. Click the link for the peer IP address for Nokia Platform B under AS100.
7. Enter 200 in the MED sent out text box.
8. Click on in the Accept MED from external peer field; then click Apply.
9. Click the link for the peer IP address for Nokia Platform C under AS200.
10. Enter 50 in the MED sent out text box.
11. Click on in the Accept MED from external peer field; then click Apply.
12. Click Save to make your changes permanent.
This configuration allows Nokia Platform D to prefer Nokia Platform A (with the lower
MED value of 100) over Nokia Platform B (with the higher MED value of 200) as the entry
point to AS100 while it propagates routes to AS100. Similarly, this configuration propagates
routes with an MED value of 50 to AS200, although no multiple entry points exist to AS200.
To configure MED Values and a route redistribution policy on Nokia Platform D
1. Click BGP under Configuration > Routing Configuration in the tree view.
2. Configure EBGP peers in AS100 and AS200 according to the “BGP Neighbors Example.”
3. Click the Route Redistribution link the Routing Configuration section.
4. Click the BGP link in the Redistribute to BGP section.