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8. In Q-in-Q mode, configuration of the S-VLAN VID, DEI and PCP. Configuration of
the C-VLAN VID and User Priority.
9. Configuration of the frame size.
10. Insertion of FCS errors using the following insertion modes: single, burst, rate and
random.
A.6. MPLS
1. MPLS generation and analysis in IP Endpoint mode. Analysis in Ethernet / IP
Through mode.
2. Support of a single and double label stack (Top and Bottom with bottom of stack
bit is set to 1 in Bottom label). The label is formatted as specified in RFC 3032.
3. Configuration of the TTL, exp and label fields for Top and Bottom MPLS headers.
4. If the MPLS block is enabled, the Type field of the MAC frame will be fixed to
0x8847 (unicast packets) or 0x8848 (multicast packets).
A.7. IPv4
1. IPv4 generation and analysis in IP Endpoint mode. Analysis in Ethernet / IP
Through mode.
2. The Ethernet Type field is forced to 0x0800 value if IPv4 generation is enabled.
3. Configuration of source and destination addresses. Destination addresses can be
configured as the opposite port factory current address, a single custom address
or an address range. If they are specified as a range, the generated sequence will
contain all the addresses within the configured range.
4. Configuration of destination MAC address either by hand or using ARP requests.
The equipment generates ARP replies from a single, main IP address, configured
in a port-specific local profile menu. All other ARP request messages are ignored.
5. Configuration of DSCP CoS labels, TTL and transport protocol. If transport proto-
col is UDP, support of UDP frame with source and destination port configuration.
6. Insertion of IP checksum errors (IP endpoint mode) using the following insertion
modes: single, burst, rate and random. This event does not produce errors in
lower transmission layers. Insertion of IP checksum errors requires regeneration
of the FCS field.
A.8. Generic / /UDP Traffic Generator
1. Generation over 8 independent streams. Each stream has its own specific band-
width profile and payload /pattern configuration.
2. Two independent traffic generators, one for each test port (Port A and Port B).