Is it possible to upgrade/replace the RAM in a CRS520-4XS-16XQ?
Further to this, does anyone know what the limit of IPv4 and IPv6 routing tables are for this particular device in relation to resource?
I have a few of these but two of them are in production so can’t just flood the routing table for testing, and I also don’t want to take the lid off to look at the DIMM slots for waranty purposes.
For upgrading memory, you must open the lid… So, no warranty… ???
Do you know how to google?
try “open CRS520-4XS-16XQ” in the search…
How many active table you have on the device in production, and from what source?
@PrimeYeti; Even though the CRS520-4XS-16XQ has a pretty decent CPU and 4 GB of RAM, it’s mainly a switch. The 4 GB is kind of borderline for handling full BGP IPv4 and IPv6 tables anyway, especially if you want to run other stuff too. If that’s the case, take a look at the CCR2116, CCR2216 or the CCR2004 series if you don’t need the full tables.
PS… You can’t swap out the RAM like on a regular PC since it’s all soldered directly onto the motherboard.
Additionally: L3HW offloaded routing (and fasttracking) is bound to on-chip memory (and not to on-board RAM) which can’t be changed. And the routing table limits are thus hard limits. If L3HW offload can’t deal with all the different routes, CPU has to perform routing for those excess destinations … and general-purpose CPU on any CRS device is relatively slow (compared to HW-offloaded functions) … only really usable for management purposes and some light-weight packet shifting.