VeEX VePAL TX300M, User Manual

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IP TOS (for Quality of Service testing):
Legacy TOS (Precedence):
The first three bits of the IP TOS field can be edited:
000 - Best Effort
001 - Bulk Data
010 - Transactional
011 - Call Signaling
100 - Streaming Video
101 - Voice
110 - Routing
111 - Reserve
DSCP (Differentiated Services Code Point):
The first six bits of the IP TOS can be edited to provide more
granular service classification.
For more information on the definition of DSCP field in IPv4 and IPv6 headers, refer to RFC2474 .
Time To Live (TTL):
Configurable in the range 0 to 255.
Fragment offset byte:
Configurable in the range 0 to 65.528.
Note:
The fragment offset field, measured in units of eight-byte blocks, is 13 bits long and specifies the
offset of a particular fragment relative to the beginning of the original unfragmented IP datagram.
Protocol field:
UDP (0x11), TCP (0x06), User Defined.
BERT Setup - IP Address settings (Layer 3
)
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Data Tab:
User selects a test pattern that will be encapsulated in the Ethernet frame payload (for framed mode).
Depending on the test layer, different test pattern options are available.
Layer 1 Framed Test Patterns
CRPAT:
Compliant Random Pattern provides broad spectral content and minimal peaking for the
measurement of jitter at component or system level.
CJTPAT:
Compliant Jitter Test Pattern is a Jitter Tolerance Pattern that stresses a receiver by exposing it to
extreme phase jumps thereby stressing the clock data recovery (CDR) circuitry. The pattern alternates
between repeating low transition density patterns and repeating high transition density patterns.
CSPAT:
Compliant Supply Noise Pattern. Represents worst case power supply noise.
BERT Setup - Data selection (Layer 1 Framed)
TX300S_e-manual_D07-00-064P_RevA00