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Nokia Network Voyager for IPSO 4.0 Reference Guide 435
6. Click External in the Peer group type drop-down list; then click Apply.
The following steps configure an EBGP peer with MD5 authentication
7. Enter
10.10.10.1 in the Add remote peer ip address text box; then click Apply.
8. Click the 10.10.10.1 link to access the BGP peer configuration page.
9. Select MD5 as the authentication type from the AuthType drop-down list; then click Apply.
10. Enter the MD5 shared key (test123 for example) in the Key edit box; then click Apply.
BGP Route Dampening Example
BGP route dampening maintains a stable history of flapping routes and prevents advertising
these routes. A stability matrix is used to measure the stability of flapping routes. The value of
this matrix increases as routes become more unstable and decreases as they become more stable.
Suppressed routes that are stable for long period of time are re-advertised again.
This example consists of the following:
Enabling BGP function
Enabling weighted route dampening
1. Click BGP under Configuration > Routing in the tree view.
2. Click the Advanced BGP Options link.
3. Enable weighted route dampening by clicking on in the Enable Weighted Route Dampening
field; then click Apply.
The following fields are displayed:
4. Enter any changes in the text boxes that correspond to the appropriate fields, then click
Apply.
Field Default value Units of measurement
Suppress above 3 Number of route flaps or approximate value of the instability metric
Reuse below 2 Same as above
Max flaps 16 Same as above
Reachable decay 300 Seconds
Unreachable decay 900 Seconds
Keep history 1800 Seconds