metrotek Bercut-MMT, Operation Manual

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22 RFC 2544. Parameters Configuration
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MPLS labels — this tab has flags to add MPLS labels to Ethernet
frames, in order to increase transmission rate of IP traffic (refer to Fig-
ure 4.6 ). Up to three tags can be inserted, which may be needed when
additional MPLS-based features are implemented. Following elements
should be configured for this purpose:
– Label Value — a 20-bits field with a tag code; is a number from
0 to 1048575; reserved tags with value from 0 to 15 do not depend
on topological properties of the network and are defined by IETF
committee;
– Time To Live — analogous to IP TTL: this is a 8-bits field
that specifies time of life of IP datagram; is used to avoid endless
circulation of packets in the network (a number from 0 to 255
should be entered).
Figure 4.6. The MPLS labels tab layout
Figure 4.7. The IP tab layout
•
IP — this tab consists of a number of fields that have to be edited in
order to generate outgoing traffic properly:
– Source IP — is a field to enter sender’s IP address; is populated
with virtual keyboard, that is displayed on pressing with a stylus
in the address input field (the
Automatically button is used for
entering an IP address of sender’s interface that is chosen in the
Topology tab);
– Destination IP — this field is populated similar to the previous
one;
– Time To Live — 8-bit field representing time period of a packet’s
life;
– UDP/TCP — This field selects transport protocol to transfer
data over IP networks:
Bercut-MMT: Ethernet Networks Analysis