Basic Frame Analysis
103
5.1.5. Frame Size Distribution
Frame size is important because it tells how a network is used. Some applications, like
VoIP use short frames while most data applications based on a client / server
architecture use short frame lengths for the client requests and long frames for the
server replies. The ALBEDO Telecom xGenius provides frame size results as
described in standard RFC 2819. The procedure for displaying the received frame size
distribution is as follows:
1. From the Home panel, go to RESULTS,
The test port results panel is displayed.
2. Select either Port A or Port B to enter in the port specific results.
3. Enter in Frame size histogram.
4. Check the frame size intervals: 64 or less, 65 - 127, 128-255, 256 - 511, 512-1023,
1024 - 1518, 1519 - 1522, 1523-1526, 1527 - MTU.
5.1.6. MPLS Statistics
Network statistics and all other results are not affected when the received traffic
contains MPLS labels. For example, IPv4 datagrams are still IPv4 packets when they
have one or more MPLS labels and they are still recognised as unicast, multicast or
Eth. broadcast Total amount of broadcast Ethernet traffic received during the
last second computed in frames per second. Broadcast
Ethernet frames carry the broadcast Ethernet address
(ff:ff:ff:ff:ff:ff) in the destination field.
IPv4 (current) Total amount of IPv4 traffic received during the last second
computed in bits per second, frames per second and as a
percentage of the overall channel capacity.
The current IPv4 traffic counter requires previous initialization
of a test with the RUN button.
IPv6 (current) Total amount of IPv6 traffic received during the last second
computed in bits per second, frames per second and as a
percentage of the overall channel capacity.
The current IPv6 traffic counter requires previous initialization
of a test with the RUN button.
UDP (current) Total amount of traffic associated to the Ethernet / IP / UDP
payloads computed in bits per second, frames per second
and as a percentage of the overall channel capacity.
The current User traffic counter requires previous initializa-
tion of a test with the RUN button.
Table 5.4: Bandwidth Statistics
Metric Description
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