what is the technical reason behind making 6509 in two shapes ????
horizontal slots vs. vertical slots ????
i need to know about it ...hence asking experts !
provides front-to-back airflow that is optimized for hot and cold aisle designs in colocated data center and service provider deployments and is compliant with Network Equipment Building Standards (NEBS) deployments.
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I have idea on the reason for vertical slot.... but .............on cisco data sheets.
i am not truly able to fidn the difference?
ok...can u pls tell me diff. b/w the following 3 models?
ok as i menionted above the diffrence between virtical and horizantal that vertical:
provides front-to-back airflow that is optimized for hot and cold aisle designs in colocated data center and service provider deployments and is compliant with Network Equipment Building Standards (NEBS) deployments
V-E and NEB-A are both Virtical but:
Cisco Catalyst 6509-V-E chassis is part of the enhanced Cisco Catalyst 6500 series of switches, offering enhanced benefits over the Cisco Catalyst 6509-NEB-A chassis. Table 1 compares the Cisco Catalyst 6509-NEB-A to the Cisco Catalyst 6509-V-E chassis.
feature Comparison Between Cisco Catalyst 6509-NEB-A and Cisco Catalyst 6509-V-E Chassis
Cisco Catalyst 6509-NEB-A
Cisco Catalyst 6509-V-E
Bandwidth Capacity per Slot
System Bandwidth Capacity
Category 5e and fiber
Category 5e, Category 6, Category 6a and fiber
Supported Maximum System Power
Standby Fabric Hot Sync (Supervisor Engine Switchover)
Number of EoBC Channels
NEBS L3 Compliant
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As the other posters have already described, you have the "ordinary" 6500s and the versions with NEBS certifications.
What might not be as clear, although this can be seen in the stats of one of Marwanshawi's posts, is Cisco has upgraded both versions to allow for more power within the chassis and to support more bandwidth to line cards.
So you "ordinary" 6500s:
6509 (original) to 6509-E (enhanced)
and the NEBS versions:
6509-NEB-A (original) to 6509-V-E (enhanced)
As to why the NEBS versions use vertical cards rather the horizontal cards, it might be it made it easier to meet NEBS certification or it might be Cisco just wanted them to look different or somewhere in between.
Except for the NEBS certifications, a 6509-NEB-A is sort of equivalent to a 6509 while a 6509-V-E is sort of equivalent to a 6509-E.