12-14-2020 01:22 PM - edited 12-14-2020 01:26 PM
Dears
kindly, i have scenario contain 40 sites using ISR 4K with hub HQ using cisco ASR1001-X &40 sites
each one contain cisco ISR4321/K9 ,
1.spoke site contain one subnet related with CCTV camera
2.hub site ( HQ ) contain 4 server receive multicast traffic each server recieve multicast traffic from 10 site
3. server only accept multicast traffic from cameras in brunches
need your help for best scenario for implementation
note: dmvpn tunnel is implement between hub & spoke sites
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12-14-2020 01:53 PM
12-14-2020 01:53 PM
12-15-2020 12:44 PM - edited 12-15-2020 12:45 PM
dear sir
its great , you hit the nail on the head , but i try to do approach between your post & actual network ..
thanks again
god safe you
12-15-2020 01:29 PM - edited 12-15-2020 01:30 PM
dear sir
i need full configuration for hub & spoke router as below :
we have 40 branch & 4 server each server receive multicast traffic for 10 branches & each branch contain 5 cameras need to send multicast traffic to one server so mean totally one server must receive multicast traffic for 50 CCTV camera ( 5 camera *10 branch)
12-14-2020 02:31 PM - edited 12-14-2020 02:33 PM
Many senders to one receiver is sort of the opposite of an expected multicast design. So, first, do you really, really need the camera to use multicast to send to a single receiver? (From what you describe, the same ten cameras, of forty, send to the same server, of four, correct? Or, do all cameras send to the same multicast address which is also received by all four severs, which in turn, determine which ten cameras, of your forty, that they want to process?)
If multicast is the only option, you're going, especially in this case, to want to use sparse mode.
Since you'll be sending traffic over VPN tunnels (in this case DMVPN), you'll want to insure your routers don't need to fragment the video packets. You may need to determine if the cameras are generating packets larger than the tunnels can handle, w/o fragmentation. If they are, then you'll want to see if you can either use PMTUD, to respond to a "packet needs fragmentation" message from the router (BTW, I recall [?] router may also need to be configured to so notify the sender) or not generate too large packets to begin with.
CCTV cameras, depending on video codec, and what the camera "sees" might vary much in the bandwidth used. Does you hub have sufficient bandwidth to support all forty remote sites, sending heavy streams, concurrently? Will any other traffic be using this topology beyond your CCTV streams? If so, again, does your hub have sufficient bandwidth?
12-15-2020 11:59 AM - edited 12-15-2020 01:22 PM
dear sir
kindly,high appreciate your reply , about your question for reqiured senario:
now we have dedicated subnet for camera already working & we use Eoip Tunnel in mikrotik device to pass vlan for this subnet to server so traffic reach to server as broadcast & we divide servers to four vlan each vlan recieve broadcast fpr ten bransh site
this senario is consume our bandwidth & we modernize network to get ride of mikrotik device to cisco device
so :
we have 40 branch & 4 server each server receive multicast traffic for 10 branches & each branch contain 5 cameras need to send multicast traffic to one server so mean totally one server must receive multicast traffic for 50 CCTV camera ( 5 camera *10 branch)
note : 4 server exist in HQ hub & we have dmvpn tunnel between hq & 40 branches
i need full configuration for this senario
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