# Cisco IOS SPAN and RSPAN

**URL:** https://forum.networklessons.com/t/cisco-ios-span-and-rspan/1096
**Category:** Lessons Discussion
**Created:** [December 26, 2016, 10:46pm UTC](https://forum.networklessons.com/t/cisco-ios-span-and-rspan/1096 "2016-12-26T22:46:34Z")
**Posts on this page:** 1
**Showing post:** 4

<div class="post-metadata">

### Author: ![ReneMolenaar](https://cdn-forum.networklessons.com/user_avatar/forum.networklessons.com/renemolenaar/32/488_2.png) [@ReneMolenaar](https://forum.networklessons.com/u/ReneMolenaar)
#### Post date: [November 4, 2015, 8:43pm UTC](https://forum.networklessons.com/t/cisco-ios-span-and-rspan/1096/4 "2015-11-04T20:43:30Z")

</div>

Hi Alan,

Good question…only thing I could find is this document:

> **[Catalyst 2960-X Switch Network Management Configuration Guide, Cisco IOS...](https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960x/software/15-0_2_EX/network_management/configuration_guide/b_nm_15ex_2960-x_cg/b_nm_15ex_2960-x_cg_chapter_0111.html#concept_A4AB227AC35840A1ACE51453EDBACD3E)**
>
> Catalyst 2960-X Switch Network Management Configuration Guide, Cisco IOS Release 15.0(2)EX-Configuring SPAN and RSPAN

a) It doesn’t specify anything about the number of interfaces, only the number of sessions.

b) For a single session, you specify a source + destination so that’s one session.

c) maximum of 4 (2 if switch is stacked with Catalyst 2960-S switches) source sessions and 64 RSPAN destination sessions. A source session is either a local SPAN session or an RSPAN source session.

Rene

---

_[View the full topic](https://forum.networklessons.com/t/cisco-ios-span-and-rspan/1096)._