Specifications

4-9
Cisco ONS 15530 Planning Guide
OL-7708-01
Chapter 4 Optical Loss Budgets
Client Signal Latency on Aggregation Card
8-Port FC/GE Aggregation Cards
The 8-port FC/GE aggregation card adds latency to FC traffic. The amount of latency depends on how
traffic is configured on the node. Table 4-12 shows the FC latency values for different configurations of
the 8-port FC/GE aggregation card.
8-Port Multi-Service Muxponders
The 8-port multi-service muxponder adds latency to client traffic. Table 4-13 shows the client traffic
latency values for the 8-port multi-service muxponder.
Table 4-12 FC and FICON Latency Values for 8-Port FC/GE Aggregation Cards
Traffic Mix on Transmitting Node
Maximum Added End-to-End Latency
1
(Time and Distance)
1. The latency values are based on configuration of correct transmit buffer sizes as described in the Cisco ONS 15530 Configuration Guide.
No GE
1518-Byte
GE Packets
4470-Byte
GE Packets
10,232-Byte
GE Packets
FC/FICON only on the 2.5-Gbps
aggregated signal carried over a 2.5-Gbps
ITU trunk card
18.8 microseconds
(3.8 km)
FC/FICON only on a 2.5-Gbps
aggregated signal carried over a 10-Gbps
ITU trunk card
19.9 microseconds
(4.0 km)
FC/FICON only on a 2.5-Gbps
aggregated signal mixed with GE on the
same 10-Gbps ITU trunk card
22.2 microseconds
(4.4 km)
24.8 microseconds
(5.0 km)
36.3 microseconds
(7.3 km)
FC/FICON and GE on the same 2.5-Gbps
aggregated signal carried over a 2.5-Gbps
ITU trunk card
27.9 microseconds
(5.6 km)
47.1 microseconds
(9.4 km)
83.6 microseconds
(16.7 km)
FC/FICON and GE on the same 2.5-Gbps
aggregated signal carried over a 10-Gbps
ITU trunk card
39.2 microseconds
(7.8 km)
77.1 microseconds
(15.4 km)
151.1 microseconds
(30.2 km)
Table 4-13 Latency Values for 8-Port Multi-Service Muxponders
Protocol
Unidirectional End-to-End Latency for 0 km Fiber
Typical Latency
(microseconds)
Maximum Latency
(microseconds)
ESCON 10 13
Fibre Channel 4 6
GE (optical) 8 10
FE (optical) 16 18
GE (copper) 9 11
FE (copper) 18 20