08-11-2003 12:01 PM - edited 03-02-2019 09:30 AM
Is it common or best practice for service providers to block lsa updates out of the interface that feeds customers or not? Are their any specific reasons why they would not block lsa's from reaching my home?
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08-11-2003 12:07 PM
They should have passive interface configured, so they won't form an adjacency over a customer facing interface. They should also have cdp disabled on their customer facing interfaces. There's no rason they'd want to exchange ospf with you, unless you are doing sham links/PE-CE, or an MPLS VPN tunnel through their network.
Russ.W
08-11-2003 12:07 PM
They should have passive interface configured, so they won't form an adjacency over a customer facing interface. They should also have cdp disabled on their customer facing interfaces. There's no rason they'd want to exchange ospf with you, unless you are doing sham links/PE-CE, or an MPLS VPN tunnel through their network.
Russ.W
08-11-2003 12:22 PM
Would you clarify sham links/PE-CE? I just have dsl service. Thanks for the quick response.
08-11-2003 01:01 PM
The best place to look is here:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/products_feature_guide09186a0080087ce2.html
At the very first, there's an explanation of what sham links are used for. I hope that helps....
:-)
Russ.W
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