ProCurve 5300xl Specifications download pdf (Page 9)

TotalRxFrames

14285711648 8108112000 4347829856 2255634400 1149426432 923077824 780229824

TotalLoss(%)

0.000 0.000 0.000 0.000 0.000 0.000 0.000

100BT Ports

Port pairs active, full duplex: 192 = 19.2 Gbps data out of the tester

Test length: 3 hours

Packet size

(bytes)

64 128 256 512 1024 1280 1518

%MaxRate

100 100 100 100 100 100 100

TotalTxFrames

308572144115 175134177024 93913320982 48721238434 24827090688 19937539584 16852104

TotalRxFrames

308572144115 175134177024 93913320982 48721238434 24827090688 19937539584 16852104

TotalLoss(%)

0.000 0.000 0.000 0.000 0.000 0.000 0.000

Throughput Test Comments

A fully meshed performance test sends packets from each port to every other port during the

test. This test exercises both the modules and the backplane. These tests show the ProCurve

5300xl Switch Series to be wire-speed on all ports simultaneously. The 5300 is the only chassis

in its price range that is wire-speed on all ports simultaneously at Layer 2 or Layer 3.

IP Routing (L3) RFC 2245 Latency Test

Copper Gig Ports

Port pairs active, full duplex: 32

All latencies in microseconds

Frame Size 64 128 256 512 1024 1280 1518

AvgLatency(μs) 5.802 6.746 8.085 11.731 18.067 21.104 23.940

100BT Ports

Port pairs active, full duplex: 192

All latencies in microseconds

Frame Size 64 128 256 512 1024 1280 1518

AvgLatency(μs) 24.36 36.26 42.38 81.44 136.46 166.42 200.8

Latency Test Comments

Latency is measured as the time it takes for a byte inside a packet to enter and then leave the

switch. This measurement includes both the processing time of the switch as it makes its

forwarding decision and the time for the packet itself to enter and leave the switch.

The latency figures for the ProCurve 5300xl Switch Series are low. Latencies this low will not be

a factor in general network operation, even with streaming video or VoIP applications.

Almost all switches currently on the market, the 5300 included, are store and forward, so the

entire packet is received into the switch before the switch starts to transmit it out the outgoing

port. The above latency figures include this packet receive time. For example, at 100Mbps it

takes 5.76 μsec for a 64 byte packet, and 122.08 μsec for a 1518 byte packet itself to move into

and out of the switch. At 1Gbps a 64 byte packet takes 576 ηseconds, while a 1518 byte packet

takes 12.208 μsec. Adding the packet receive time to the latency is proper because this extra

time is seen externally to the switch by the network and figures in to the transit time of the

packet as it moves through the network.

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ProCurve 5300xl Specifications Page 9

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