Introduction
If the frame’s entry is not found in the connection table, a request is sent to the system’s Virtual Network Services (VNS). The VNS checks its virtual routing tables and policy sections. If the frame’s information appears in the VNS’ virtual routing tables and the VNS’ policy section contains an entry that verifies that the frame’s source and the frame’s destination are a valid combination, then the frame is forwarded to its destination via the chassis’ SmartSwitch Bus, and a corresponding entry is written to the receiving module’s connection table. Otherwise, the frame is dropped.
1.4 SITE GUIDELINES
When choosing a location for the 7C04 Chassis, the following guidelines must be followed to ensure satisfactory network performance.
•An unrestricted free surface area of 43.2 cm. (17 in.) wide,
34.8cm. (13.7 in.) deep and 16 cm. (6.3 in.) high must be available for the enclosure.
•If the chassis is to be placed on a shelf, the shelf must be capable of supporting 13.5 kg. (30 pounds) of static weight.
•If the chassis is to be rack mounted, care must be taken to ensure that the rack used will support the chassis and that the rack will remain stable with the chassis inserted. In order to allow proper cooling within the rack, there must be 7.6 cm. (3 in.) of clearance above the unit and 5 cm. (2 in.) of clearance on either side of the chassis in addition to the unrestricted free surface area previously detailed.
•A standard
21.13meters (7 feet) of the chassis.
•The temperature of the location surrounding the chassis must be maintained between 5° and 40°C (41° to 104°F). Temperature changes of greater than 10°C (18°F) per hour must not occur.