Understand the Usage and Limitations of CVR-QSFP-SFP10G Adapter

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Updated:May 26, 2026
Document ID:216743

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Introduction

This document describes the usage and limitations of the CVR-QSFP-SFP10G adaptor on the C9600-LC-24C line card on the Catalyst 9600 platform.

Usage

C9600-LC-24C line card on the C9600 platform has 24 QSFP ports that support 40G & 100G optics. You cannot directly insert an SFP-based 10 Gbps or 1 Gbps optics on these ports.

CVR-QSFP-SFP10G adaptor provides the flexibility to use SFP based 10 Gbps or 1 Gbps optics on QSFP based ports of C9600-LC-24C line card on the C9600 platform.

List of 10 Gbps and 1 Gbps Optics Supported with CVR-QSFP-SFP10G Adaptor

Sl no. Optics Speed Minimum Cisco IOS® XE Version
1 SFP-10G-SR 10 Gbps 16.11.1
2 SFP-10G-SR-S 10 Gbps 16.11.1
3 SFP-10G-LR 10 Gbps 16.11.1
4 SFP-10G-LR-S 10 Gbps 16.11.1
5 SFP-10G-ER 10 Gbps 16.11.1
6 SFP-10G-ER-S 10 Gbps 16.11.1
7 SFP-10G-ZR 10 Gbps 16.11.1
8 SFP-10G-ZR-S 10 Gbps 16.11.1
9 DWDM-SFP10G-xxx 10 Gbps 16.11.1
10 SFP-H10GB-CU1M 10 Gbps 16.11.1
11 SFP-H10GB-CU3M 10 Gbps 16.11.1
12 SFP-H10GB-CU5M 10 Gbps 16.11.1
13 GLC-T* 1 Gbps 16.12.2/17.1.1
14 GLC-TE* 1 Gbps 16.12.2/17.1.1
15 GLC-LH-SMD 1 Gbps 16.12.2/17.1.1
16 GLC-SX-MMD 1 Gbps 16.12.2/17.1.1

* 10 Mbps & 100 Mpbs speed with GLC-T & GLC-TE are not supported with CVR-QSFP-SFP10G adaptor. Only 1 Gbps speed with GLC-T & GLC-TE is supported with CVR-QSFP-SFP10G adaptor.

C9600-LC-24C Line Card Front Panel Port Layout and Port Mapping

1/25 3/27 5/29 7/31 9/33 11/35 13/37 15/39 17/41 19/43 21/45 23/47
2/26 4/28 6/30 8/32 10/34 12/36 14/38 16/40 18/42 20/44 22/46 24/48

These CLIs can be used to check the port mapping. Their operational speed mode and physical to virtual port numbering (for 100 Gbps interfaces):

show hw-module subslot x/0 port-group mapping

show hw-module subslot x/0 port-group operation-mode

show hw-module subslot x/0 port-group port-numbering

where x is the Linecard slot number.

Sample Output:


Switch#show hw-module subslot 1/0 port-group mapping 
Port Group Mapping for slot 1

Port-Group Ports
1 Fo1/0/1, Fo1/0/2, Hu1/0/25
2 Fo1/0/3, Fo1/0/4, Hu1/0/27
3 Fo1/0/5, Fo1/0/6, Hu1/0/29
4 Fo1/0/7, Fo1/0/8, Hu1/0/31
5 Fo1/0/9, Fo1/0/10, Hu1/0/33
6 Fo1/0/11, Fo1/0/12, Hu1/0/35
7 Fo1/0/13, Fo1/0/14, Hu1/0/37
8 Fo1/0/15, Fo1/0/16, Hu1/0/39
9 Fo1/0/17, Fo1/0/18, Hu1/0/41
10 Fo1/0/19, Fo1/0/20, Hu1/0/43
11 Fo1/0/21, Fo1/0/22, Hu1/0/45
12 Fo1/0/23, Fo1/0/24, Hu1/0/47


Switch#show hw-module subslot 1/0 port-group operation-mode 
Module 1 port group 1 is running in HundredGigabitEthernet mode
Module 1 port group 2 is running in FortyGigabitEthernet mode
Module 1 port group 3 is running in FortyGigabitEthernet mode
Module 1 port group 4 is running in FortyGigabitEthernet mode
Module 1 port group 5 is running in FortyGigabitEthernet mode
Module 1 port group 6 is running in FortyGigabitEthernet mode
Module 1 port group 7 is running in HundredGigabitEthernet mode
Module 1 port group 8 is running in HundredGigabitEthernet mode
Module 1 port group 9 is running in HundredGigabitEthernet mode
Module 1 port group 10 is running in HundredGigabitEthernet mode
Module 1 port group 11 is running in HundredGigabitEthernet mode
Module 1 port group 12 is running in HundredGigabitEthernet mode




Switch#show hw-module subslot 1/0 port-group port-numbering 
Physical Port Mapping for slot 1

Physical-Port Mapped-Port
1 Hu1/0/25
2 Hu1/0/26
3 Hu1/0/27
4 Hu1/0/28
5 Hu1/0/29
6 Hu1/0/30
7 Hu1/0/31
8 Hu1/0/32
9 Hu1/0/33
10 Hu1/0/34
11 Hu1/0/35
12 Hu1/0/36
13 Hu1/0/37
14 Hu1/0/38
15 Hu1/0/39
16 Hu1/0/40
17 Hu1/0/41
18 Hu1/0/42
19 Hu1/0/43
20 Hu1/0/44
21 Hu1/0/45
22 Hu1/0/46
23 Hu1/0/47
24 Hu1/0/48

Limitations with CVR-QSFP-SFP10G Adaptor

  • CVR-QSFP-SFP10G adapter must not be installed on an even-numbered port where the corresponding odd-numbered port has 40GE optics. For example, if port 1 has 40GE optics, CVR-QSFP-SFP10G must not be installed in port 2.

  • CVR-QSFP-SFP10G adapter must not be installed on any port that has an enable config. For example, CVR-QSFP-SFP10G adapter must not be installed on a port configured to operate in 100GE.

Revision History

Revision Publish Date Comments
4.0
26-May-2026
Updated spelling, spacing, and grammar.
3.0
14-Dec-2023
Updated Introduction and Branding Requirements.
2.0
21-Nov-2022
Updated title and introduction, style requirements, machine translation, gerunds and formatting.
1.0
22-Jan-2021
Initial Release

Contributed by

  • Lavkumar Padia
    Cisco TAC Engineer

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