Cisco 12000

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The Performance Route Processor (PRP) is the core of a GSR.

The Cisco 12000, also known as a Gigabit Switch Router or GSR, is a series of large network routers designed and manufactured by Cisco Systems.[1]

IP Services Engine (ISE) with four Gigabit Ethernet SFPs.


Cisco 12000 series routers feature a high-performance switched backplane providing 2.4Gbit/s across 16 switched ports simultaneously.[2] The Multi-Service Blade module (introduced for the XR 12000 line) provides firewall and acts as a session border controller.[3]


Certain line cards in Cisco 12000 routers are potentially vulnerable to denial-of-service attacks.[4] Additionally, certain software versions were vulnerable to specially crafted IPv4 packets.[5]

See also[edit]


  1. ^ Gredler, Hannes; Goralski, Walter (2005). The Complete Isis Routing Protocol. Springer. ISBN 9781846281051. 
  2. ^ "Fast Switched Backplane for a Gigabit Switched Router" (PDF). Department of Electrical Engineering, Stanford University. Retrieved January 19, 2013. 
  3. ^ Duffy, Jim (March 19, 2007). "Cisco adds firewall, SBC module to XR 12000 line". Network World. Retrieved January 19, 2013. 
  4. ^ Leyden, John (15 November 2001). "Cisco high-end routers in DoS peril". The Register. Retrieved January 19, 2013. 
  5. ^ Berndtson, Chad (May 27, 2011). "Cisco Warns Of Vulnerabilities In IOS XR Software". CRN. Retrieved January 19, 2013. 

External links[edit]