Spirent SmartBits System - Page 101

Chapter 9: Ethernet Cards
Feature Summary of Gigabit Cards
SmartBits System Reference 93
Table 9-8. SMB-600/6000B Gigabit Ethernet Cards — Feature Set Summary
Feature LAN-3201B LAN-3300A LAN-3310A LAN-3301A LAN-3311A
Interface GBIC (1) RJ-45 (2) GBIC (2) RJ-45 (2) GBIC (2)
Speed 1 Gbps 100/1000 Mbps 1 Gbps 100/1000 Mbps 1 Gbps
Duplex Mode Full Full/Half Full Only Full/Half Full Only
SmartMetrics
1
1 Allows SmartMetrics tests and histograms.
Yes Yes Yes Yes + TeraMetrics Yes +
TeraMetrics
Latency Resolut. +
100 ns + 100 ns + 100 ns + 100 ns + 100 ns
Max streams per
Port
8192 streams 512 streams 512 streams 512 streams 512 streams
Alternate Streams 1 1 1 1 1
Max Flows per
Stream
512M Billions Billions Billions Billions
VFD 3 Size 16K 16K 16K 16K 16K
Capture Buffer 1MB 16MB 16MB 16MB 16MB
Packet Length 32 to 2048
bytes
40 to 16,384
bytes
40 to 16,384
bytes
40 to 16,384 bytes 40 to 16,384
bytes
Gen./Valid. IP
Head Checksum
Yes Yes Ye s Ye s Ye s
CRC Err ors Ye s Yes Yes Ye s Yes
Errors:Alignment
Dribble, Symbol
Under/oversize
Under/
oversize
frames
Undersize,
oversize, + pause
frames
Undersize,
oversize, +
pause frames
Undersize,
oversize, + pause
frames
Undersize,
oversize, +
pause frames
Adj. Preamble
Length
No Yes Yes Yes Ye s
Min Tx Interpkt
Gap
MaxTxInterpkt
Gap
Increments
96 ns
33.33
µse
32 ns
100M
1000M
960 ns 96 ns
5.3 sec 1.07 s
40 ns 8 ns
96 ns
1.07 sec
8ns
100M
1000M
960 n 96 ns
5.3 sec 1.07 s
40 ns 8 ns
96 ns
1.07 sec
8ns
VLA N Ta gg in g Yes Yes Ye s Ye s Ye s
Collisions
Detected
N/A N/A N/A N/A N/A
Flow Control Yes Yes Yes Yes Yes
Traffic Rates > wire speed > wire speed > wire speed > wire speed > wire speed
# Ports per Card 2/1 4/2 4/2 4/2 4/2