One of the major advantages of the 100Gig NCS line cards is the option of breakout. 100Gig interfaces can be configured through a single line command to be either 10, 100 or 40 gig interfaces. On the same line card you can have a mix of either 10, 100 or 40 gig interfaces and in some cases you don’t have to change the optics too. Earlier products had cards for every Ethernet speed and customers had to verify each type of card. Now it’s a lot easier as they have to certify just one card. A 100Gig interface can be split into a 10Gig interface by separating the signal between the individual fiber pairs. These fiber pairs can be connected to far end devices via 2 methods.
The first method is by using a special cable that has an MPO24 connector at one end and 12 individual LC connectors on the other end. The cable has 24 individual fiber strands, which are connected to the MPO24 on one end and split in pairs on the LC connector. Two of the 12 LC connectors are not used, while the remaining ten can be used as individual 10G connections.
In the case of short reach, the multimode version of this cable connects to the CXP SR10 or the CPAK SR10 and in the case of the long reach, the SM cable connects to the CPAK 10x10G LR transceiver. The LC end of the cables can connect to SFP+ transceivers.
The second method is by using a breakout patch panel. This device is 3 RU in size and is passive. The patch panel needs to be bought separately and it comes in either short reach or long reach version. The CPAK SR10, CXP SR10 and the CPA 10x10G LR support this method. These transceivers are connected via special cables that have the MPO24 connector on both ends of the cable. These cables are connected to the breakout patch panel. The MPO24 connectors are internally mapped on the patch panel to 10 LC connectors which can be individually connected via an LC to LC cable to an SFP+ transceiver.
We capture the following outputs in the demo, which is at the end of the video.
show install active
show platform vm
show interface summary
show ip interface brief
show uidb index tenGigE 0/0/0/0/0 location 0/0/CPU0
show uidb index location 0/0/CPU0
show vm location 0/rp0
show runn sdr
show environment power
show environment fan
show environment temperature
show controller TenGigE0/0/0/4/0 stats
clear controller TenGigE0/0/0/4/0 stats
show controllers plim asic statistics interface TengigE0/0/0/4/0
clear controller plim statistics location 0/0/cpu0
show interface bundle-ether100
show interface bundle-ether100 acc
show controllers pse statistics summary instance 2 location 0/0/CPU0
debug icmp ipv4 location 0/0/CPU0
show controllers fia statistics instance 2 location 0/0/CPU0
clear controller fia statistics instance 2 location 0/0/CPU0
Hope this blog and tech-talk video on the NCS 6008 Software and Hardware Introduction was useful to you and we look forward to your feedback. You can send-in your feedback using the comments section below.
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