# Unable to mirror few topics with source 2.1 and destination 3.7

**URL:** <https://forum.confluent.io/t/unable-to-mirror-few-topics-with-source-2-1-and-destination-3-7/37233>\
**Category:** Cluster Replication\
**Created:** [13 February 2025 08:46 UTC](https://forum.confluent.io/t/unable-to-mirror-few-topics-with-source-2-1-and-destination-3-7/37233 "2025-02-13T08:46:42Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![sameerconfluent](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.confluent.io/sameerconfluent/32/4090_2.png) [@sameerconfluent](https://forum.confluent.io/u/sameerconfluent)\
**Post date:** [13 February 2025 08:46 UTC](https://forum.confluent.io/t/unable-to-mirror-few-topics-with-source-2-1-and-destination-3-7/37233/1 "2025-02-13T08:46:42Z")

</div>

We have topic in source cluster with following config which is not getting mirrored from source cluster 2.1 to destination cluster with 3.7 using mm2 (3.7). Similar config topics are not getting mirrored other are getting mirrored.  
/apps/confluent-5.1.0/bin/kafka-topics --zookeeper localhost:2181 --topic voevents-pilot-nc --describe

Topic:voevents-pilot-nc PartitionCount:6 ReplicationFactor:3 Configs:message.timestamp.type=CreateTime