Chapter 1: Overview
AT-SBx81GT40 Line Card
The
Figure 12. AT-SBx81GT40 Line Card
Here are the main features of the line card:
40 10/100/1000Base-T ports
RJ point 5 connectors
100 meters (328 feet) maximum operating distance per port
Auto-Negotiation for speed
Full-duplex mode only
Automatic MDIX detection for ports operating at 10/100Base-TX, (Automatic MDIX detection does not apply to 1000Base-T operation.)
Port Link/Activity (L/A) LEDs
32K entry MAC address table
32 Mb buffer memory
Jumbo frame support:
–10240 octets for tagged and untagged traffic between ports on the same line card
–10232 octets for untagged traffic between ports on different line cards
–10236 octets for tagged traffic between ports on different line cards
Non-blocking full wire speed switching on all packet sizes, with two AT-SBx81CFC400 Central Fabric Controller cards
Hot swappable
Note
The ports on the line card do not support half-duplex operation.
The cable requirements for the ports on the AT-SBx81GT40 Line Card are listed in Table 1 on page 33.
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