Hi,
Ive deployed a CCR2216-1G-12XS-2XQ recently in my network and using it as a edge router for customers with high BW requirements like 5 Gbps to 15 Gbps. The purpose of deploying this was to cater clients which do not require any fancy routing (BGP for example) and only require us to provide them a P2P IP on a VLAN and route a static public IP pool towards them so that they can use internet. I have configured around 9 customers on this CCR this way. Ive applied traffic shaping for each customer using the firewall->filter rules using the "Extra->Limit" option since all customers range in between 5 Gbps to 15 Gbps since I dont think simple queues will be able to handle the stress. Plus this is less CPU hungry in my experience. Ive connected this CCR's 1 XQ interface to my core router from where the internet is accessible and the 2nd XQ interface to a switch where al customers are aggregated on VLANs and transported to the CCR on this port via trunk. Both the XQ interfaces have 40G SFPs installed instead of 100G. The aggregate traffic on this CCR is only around 30 Gbps but somehow this CCR has its CPU utilization at 75-80% (with l3hw offloading enabled) which is scaring me. If i disable the l3hw offload, the CPU utilization jumps to 90%. In order to check what is causing the high CPU utilization, and found that networking is taking up 23% of the CPU. There is no BGP running on this CCR, no connection tracking enabled. Just OSPF enabled for the core router connectivity and that's it. Im not sure if I have made wise investment on this CCR as I was hoping I can shift all my high capacity customers on to it but the way its CPU is behaving, I'm scared to put on load. The OS version right now on it is 7.14.1. Can anyone guide and share their feedback on this or if they have observed same behavior in such an environment?
Ive deployed a CCR2216-1G-12XS-2XQ recently in my network and using it as a edge router for customers with high BW requirements like 5 Gbps to 15 Gbps. The purpose of deploying this was to cater clients which do not require any fancy routing (BGP for example) and only require us to provide them a P2P IP on a VLAN and route a static public IP pool towards them so that they can use internet. I have configured around 9 customers on this CCR this way. Ive applied traffic shaping for each customer using the firewall->filter rules using the "Extra->Limit" option since all customers range in between 5 Gbps to 15 Gbps since I dont think simple queues will be able to handle the stress. Plus this is less CPU hungry in my experience. Ive connected this CCR's 1 XQ interface to my core router from where the internet is accessible and the 2nd XQ interface to a switch where al customers are aggregated on VLANs and transported to the CCR on this port via trunk. Both the XQ interfaces have 40G SFPs installed instead of 100G. The aggregate traffic on this CCR is only around 30 Gbps but somehow this CCR has its CPU utilization at 75-80% (with l3hw offloading enabled) which is scaring me. If i disable the l3hw offload, the CPU utilization jumps to 90%. In order to check what is causing the high CPU utilization, and found that networking is taking up 23% of the CPU. There is no BGP running on this CCR, no connection tracking enabled. Just OSPF enabled for the core router connectivity and that's it. Im not sure if I have made wise investment on this CCR as I was hoping I can shift all my high capacity customers on to it but the way its CPU is behaving, I'm scared to put on load. The OS version right now on it is 7.14.1. Can anyone guide and share their feedback on this or if they have observed same behavior in such an environment?
Statistics: Posted by discoeng — Sat Jun 01, 2024 3:37 pm