Failure to Create Circuit Between CE Card on ONS 15310 and ML Card on ONS 15454

Document ID: 69337

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Introduction
Prerequisites
      Requirements
      Components Used
      Conventions
Background
Problem
Solution
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Introduction

This document describes why the circuit creation fails between the Cisco ONS CE-Series Ethernet card on Cisco ONS 15310-CL and the Cisco ML-Series card on Cisco ONS 15454.

Prerequisites

Requirements

Cisco recommends that you have knowledge of these topics:

Cisco ONS 15454
Cisco ONS 15310
Cisco ONS 15454 ML-Series Ethernet Cards
Cisco ONS CE-Series Ethernet Card

Components Used

The information in this document is based on these software and hardware versions:

Cisco ONS 15454 that runs Cisco ONS version 6.0
Cisco ONS 15310 version 6.0
ML (bundled as part of the ONS 6.0 release) that runs Cisco IOS® Software Release 12.2(27)SV and later

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

Background

The Cisco ONS CE-Series Ethernet card and ML-series cards support Packet Over Sonet (POS)/Resilient Packet Ring (RPR) Encapsulation on two Virtual Concatenation Group (VCG)/POS ports using GFP-F (ITU-T G.7041) or LEX (HDLC) Encapsulation.

Problem

When creating a circuit between CE-Series Ethernet card and ML-series cards, the error message (see arrow A in Figure 1) appears on Cisco Transport Controller (CTC).

Here is the data flow for this specific circuit:

Cisco CE-series Card <--> ONS 15310 <--> OC12/SONET Connection <--> ONS 15454 <--> Cisco ML-series Card

Figure 1: Error Message - Transport Layer Failure

Solution

The failure is caused by the encapsulation mismatch on POS ports between CE-Series Ethernet card and ML-Series card. Both cards support GFP-F and LEX (HDLC) encapsulation. If the POS port on one card is configured to use the GFP-F encapsulation, and the POS port on the other card is configured to use the LEX encapsulation, the circuit creation between these two cards fails.

Complete these steps to configure the port encapsulation for Cisco ONS CE-series card on Cisco ONS 15310:

Log in to Cisco Transport Controller (CTC).
Go to the CE-Series card view.
Select Provisioning > POS Ports > Line.
Select either HDLC or GFP-F from the Framing Type dropdown list (see arrow A in Figure 2).
Figure 2: Port Configuration on the CE-series Card