What is FlowSpec BGP?

What is FlowSpec BGP?

The BGP flow specification (flowspec) feature allows you to rapidly deploy and propagate filtering and policing functionality among a large number of BGP peer routers to mitigate the effects of a distributed denial-of-service (DDoS) attack over your network.

What is a FlowSpec?

Flow Specification (Flowspec) is a new type of Network Layer Reachability Information (NLRI) for the BGP routing protocol. It is used to apply specific actions on network traffic defined by specific filters to traffic flowing through routers.

What is BGP FlowSpec Juniper?

BGP FlowSpec is a DDoS mitigation solution that is specified in RFC 5575. The first BGP FlowSpec draft was submitted to IETF on August 14th, 2007, and it was later published in 2009 as RFC 5575 (http://tools.ietf.org/html/rfc5575).

Is BGP a Layer 7?

Wikipedia lists BGP as Layer 7 but EGP, OSPF, EIGRP etc as Layer 3.

What is a dead IP?

In general a “Dead IP” is one that is still in your DNS cache (on your laptop, or in the configuration of your gateway/router), but the IP address is no longer valid. You’ve given us no information about how your network is set up or configured.

Is BGP a Layer 3?

BGP in networking is based on TCP/IP. It operates on the OSI Transport Layer (Layer 4) to control the Network Layer (Layer 3).

How do I remove dead IP address?

How to Delete IP Addresses from DHCP Service (DHCP Manager)

1. Select the Addresses tab.
2. Select the IP address’s network.
3. Select one or more IP addresses you want to delete.
4. Choose Delete from the Edit menu.
5. If you want to delete the host names from the hosts table, select Delete From Hosts Table.
6. Click OK.

What is a dead IP address?

Which is Cisco 8000 platform supports BGP flowspec?

BGP flowspec feature has been supported on ASR9K since XR 5.2.0, NCS5500 since XR 6.5.1, and Cisco 8000 platform supports the feature starting with 7.0.12 release. 7.0.12 might not be GA release.

How is ingress traffic matched in BGP flowspec?

Ingress traffic can be matched by many criteria as defined in the RFC. We can define only one, some, or all criteria to match traffic. Once a set of criteria in a flowspec is defined, then all criteria must match the packet for actions to take place.

Which is better, BGP flowspec or BGP-FS?

Both options work great, but are big hammers. BGP flowspec allows for a more granular appraoch and effectively construct instructions to match a particular flow with source AND destination, and L4 parameters and packet specifics such as length, fragment etc, and allow for a dynamic installation of an action at the border rotuers to either:

When was the first BGP flowspec draft published?

BGP FlowSpec. BGP FlowSpec is a DDoS mitigation solution that is specified in RFC 5575. The first BGP FlowSpec draft was submitted to IETF on August 14th, 2007, and it was later published in 2009 as RFC 5575 (http://tools.ietf.org/html/rfc5575).