02-21-2007 03:35 PM - edited 03-03-2019 03:51 PM
We have 2 L2TPv3 Tunnels running between 2 PE's(7204VXR's with NPE400's) - We use these tunnels for our backup network traffic.
Peak usage the backup system pushes ~ 12-15Mb/sec - This causes CPUs on both PE's to increase by ~35% - Is there anything that can be done to reduce this?
PE 1
pseudowire-class vlan-xconnect
encapsulation l2tpv3
ip local interface Loopback23
!
pseudowire-class vlan2-xconnect
encapsulation l2tpv3
ip local interface Loopback24
interface Loopback23
description L2TPv3_Tunnel_Loop_to_ERT02BNE_5_Net
ip address 10.10.10.101 255.255.255.255
!
interface Loopback24
description L2TPv3_Tunnel_Loop_to_ERT02BNE_12_Net
ip address 10.10.10.103 255.255.255.255
interface Port-channel1.590
encapsulation dot1Q 590
no snmp trap link-status
xconnect 10.10.10.102 590 pw-class vlan-xconnect
!
interface Port-channel1.591
encapsulation dot1Q 591
no snmp trap link-status
xconnect 10.10.10.104 591 pw-class vlan2-xconnect
PE 2
pseudowire-class vlan-xconnect
encapsulation l2tpv3
ip local interface Loopback23
!
pseudowire-class vlan2-xconnect
encapsulation l2tpv3
ip local interface Loopback24
interface Loopback23
description L2TPv3_Tunnel_Loop_to_GCRT02_5_Net
ip address 10.10.10.102 255.255.255.255
!
interface Loopback24
description L2TPv3_Tunnel_Loop_to_GCRT02_12_Net
ip address 10.10.10.104 255.255.255.255
interface FastEthernet0/0.590
encapsulation dot1Q 590
no snmp trap link-status
no cdp enable
xconnect 10.10.10.101 590 pw-class vlan-xconnect
!
interface FastEthernet0/0.591
encapsulation dot1Q 591
no snmp trap link-status
no cdp enable
xconnect 10.10.10.103 591 pw-class vlan2-xconnect
02-23-2007 10:39 AM
You can configure mirroring and put Sniffer.
Get 5-6 Hrs traffic analyses during.... Peak htrs.
Find outfrom top ten talker.. is there any perticular talker.. wich is abnormal?
Good Sniffer is " EtherPeak Analyzer ".
Regards,
Dharmesh Purohit
02-23-2007 01:36 PM
Hi Dharmesh.
I know who the top talkers are - That's not the problem....I want to know why the L2TPv3 Tunnels cause the CPU on both 7200's to go through the roof when traffic traverses them?
The tunnels are only utilised at night (When the backups run).....CPU on both 7200's goes from ~20% to 50-60% while traffic goes over the tunnels.
02-23-2007 02:14 PM
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