Albedo xGenius - Bandwidth Profiles; Test Patterns and Payloads; Filter

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User Guide
296
A.8.1. Bandwidth Profiles
1. Traffic can be generated in four different modes: Continuous, Periodic burst,
Ramp and Random.
2. Continuous traffic is specified by a single parameter entered either as a percent-
age of the channel capacity, a value in b/s or a value in frames/s.
3. Periodic burst is specified by the following values: High traffic (%, b/s, frames/s),
Low traffic (%, b/s, frames/s), High duration (frames, seconds) and Low duration
(frames, seconds).
4. Ramp traffic is specified the following values: High traffic (%, b/s, frames/s), Low
traffic (%, b/s, frames/s), Steps (integer number) and Step duration (seconds).
5. Random traffic is specified by the Poisson average traffic as a percentage, a value
in b/s or a value in frames/s.
A.8.2. Test Patterns and Payloads
1. Layer 1 test patterns are available in L1 endpoint mode. All remaining patterns are
available in IP endpoint and Ethernet endpoint modes.
2. Layer 1 BER test patterns from IEEE 802.3-2008 Annex 36A: HF test pattern, LF
test pattern, MF test pattern, Long continuous random test pattern, Short continu-
ous random test pattern.
3. Layer 1 BER test patterns IEEE 802.3-2012: PRBS 2
31
-1, A-seed (LAN interfaces
only), B-seed (LAN interfaces only),
4. Layer 2-4 BER test patterns: PRBS 2
11
-1, PRBS 2
15
-1, PRBS 2
20
-1, PRBS 2
23
-1,
PRBS 2
31
-1. These patters apply to stream 1 only.
5. Test payload for SLA statistics based in the ITU-T Y.1731 vendor specific OAM
payload (Layer 2 tests) or a proprietary ATSL format (Layer 3 tests). The SLA pay-
load for Layer 2 tests configures the Ethertype field to the default value of 0x8902
(IEEE 802.1ag / ITU-T Y.1731 OAM).
6. All zeros test pattern.
7. Insertion of TSE (endpoint modes) using the following insertion modes: single,
rate and random (only in bit patterns or payloads containing bit patterns). Insertion
of TSE requires regeneration of FCS (and UDP CRC if configured).
A.9. Filter
1. Up to 8 simultaneous filters per port can be applied to the traffic.
2. The decision of which branch is in charge of processing traffic is taken for each
individual frame using one or several filters. Each frame is processed by one and
only one branch. If there is a conflict, the branch with smaller index has prece-
dence.
3. Selection is done by using the Ethernet frame fields. If the Ethernet frame carries
IP it is possible to select frames by the IP header fields. In such cases when the