topic Re: IDSM inline VLAN pairing in Network Security https://community.cisco.com/t5/network-security/idsm-inline-vlan-pairing/m-p/888429#M85455 <HTML><HEAD></HEAD><BODY><P>I don't know if anyone is still watching this or not but that's a lot of VLANs to go through a (single?) IDSM. Technically you should be able to do it by splitting the VLAN pairs across the two data ports (i.e. vlan 2-200,1002-1200 on DP 1 and vlan 300-500,1300-1500 on DP 2). Considering each IDSM only has a throuput of 500MBps when deep scanning, you're going to potentially be limiting your throughput considerably if you do this.</P></BODY></HTML> Mon, 26 Nov 2007 21:32:13 GMT trodecke 2007-11-26T21:32:13Z IDSM inline VLAN pairing https://community.cisco.com/t5/network-security/idsm-inline-vlan-pairing/m-p/888428#M85454 <P>We have cat 6509 switch with FWSM, IDSM-2, NAM modules. Customer wants all the internal VLAN's to be monitored by IDSM in inline mode. Customer has around 400 VLANS in datacenter and wants to monitor all communications between VLAN's. How do I monitor all VLAN's when IDSM has 2 data ports and can only span 255 vlan groups per port?</P><P></P><P>Please suggest!</P><P></P><P>Vinod </P> Sun, 10 Mar 2019 10:50:44 GMT https://community.cisco.com/t5/network-security/idsm-inline-vlan-pairing/m-p/888428#M85454 vinod.rathi 2019-03-10T10:50:44Z Re: IDSM inline VLAN pairing https://community.cisco.com/t5/network-security/idsm-inline-vlan-pairing/m-p/888429#M85455 <HTML><HEAD></HEAD><BODY><P>I don't know if anyone is still watching this or not but that's a lot of VLANs to go through a (single?) IDSM. Technically you should be able to do it by splitting the VLAN pairs across the two data ports (i.e. vlan 2-200,1002-1200 on DP 1 and vlan 300-500,1300-1500 on DP 2). Considering each IDSM only has a throuput of 500MBps when deep scanning, you're going to potentially be limiting your throughput considerably if you do this.</P></BODY></HTML> Mon, 26 Nov 2007 21:32:13 GMT https://community.cisco.com/t5/network-security/idsm-inline-vlan-pairing/m-p/888429#M85455 trodecke 2007-11-26T21:32:13Z Re: IDSM inline VLAN pairing https://community.cisco.com/t5/network-security/idsm-inline-vlan-pairing/m-p/888430#M85456 <HTML><HEAD></HEAD><BODY><P>you could always rock transparent mode on trunk <span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span></P></BODY></HTML> Wed, 28 Nov 2007 16:34:29 GMT https://community.cisco.com/t5/network-security/idsm-inline-vlan-pairing/m-p/888430#M85456 jim.sellers 2007-11-28T16:34:29Z