Cisco ONS 15454 SDH E1-75 Manual - Halaman 18

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11.11 Section and Path Trace

•

CTC does not support the display of Cisco proprietary RPR circuit topologies.

Note

CTC does not support provisioning or maintenance of IEEE RPR rings. You must use Cisco IOS.

Note

11.11 Section and Path Trace

SDH J1 and J2 path trace are repeated, fixed-length strings composed of 64 consecutive bytes. You can

use the strings to monitor interruptions or changes to circuit traffic. The STM64-XFP and MRC-12 cards

support J0 section trace.

that are not listed in the table do not support the J1 byte.

Table 11-6

J1 Function

Transmit and receive

Receive only

Table 11-7

J2 Function

Transmit and Receive

Receive Only

If the string received at a circuit drop port does not match the string the port expects to receive, an alarm

is raised. Two path trace modes are available:

•

Cisco ONS 15454 SDH Reference Manual, R8.5

11-18

# of Spans

State

Loopback

Table 11-6

ONS 15454 SDH Cards Capable of J1 Path Trace

Cards

E3-12

DS3i-N-12

G-Series

ML-Series

OC3 IR 4/STM1 SH 1310

OC12/STM4-4

OC48 IR/STM16 SH AS 1310

OC48 LR/STM16 LH AS 1550

OC192 LR/STM64 LH 1550

shows cards that support J2 path trace.

ONS 15454 SDH Cards Capable of J2 Path Trace

Cards

E1-42

STM1E-12

Automatic—The receiving port assumes that the first string it receives is the baseline string.

Manual—The receiving port uses a string that you manually enter as the baseline string.

shows the ONS 15454 SDH cards that support J1 path trace. Cards

Chapter 11 Circuits and Tunnels

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