Exfo BV10 Performance Endpoint Unit Bedienungsanleitung PDF herunterladen (Seite 80)

Test Applications

74 BV10

Smart Loopback Test

The Smart Loopback feature loops back the stream of data

(frames/packets). It retransmits incoming frames/packets after exchanging

the source and destination addresses as well as ports at multiple layers

(Ethernet MAC, IP, and UDP/TCP).

Smart Loopback can be enabled (default) or disabled. Refer to

smart-loopback enable|disable on page 70 for more information.

Modes

The Smart Loopback mode limits the address/port swapping to a specific

layer. The BV10 supports the following Smart Loopback modes:

 UDP/TCP (default) – Swap MAC addresses, IP addresses, UDP or TCP

ports when present and addressed to the unit’s TEST port MAC/IP

address. In other words, swap from Layer 2 up to Layer 4 when

present.

 IP – Swap MAC addresses, IP addresses when present and addressed

to the unit’s TEST port MAC/IP address. In other words, swap from

Layer 2 up to Layer 3 when present.

 Ethernet – Swap MAC addresses when addressed to the unit’s TEST

port MAC address. In other words, swap Layer 2 when present.

 Ethernet All Unicast – Swap MAC addresses when the address is

unicast, regardless of the unit’s MAC address.

Refer to smart-loopback mode ethernet-all-unicast|ethernet|ip|udp-tcp on

page 70 for more information.

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Exfo BV10 Performance Endpoint Unit Bedienungsanleitung Seite 80