Thanks, I believe this does;
Assumptions based on this data;
- I can operate on the defaults for my application [ very little
IPv6/VPLS ].
- I can change it later if needed but that will cause the FPC to reboot.
-SH
On 8/25/14, 4:00 PM, Scott Granados wrote:
Here’s a bit more that I received that may help clear things up.
Scott,
A total of 4M flows can be created per 1 LU chip. Now it depends on the size
that we allocate to ipv4-flow-table size,ipv6-flow-table-size and
vpls-flow-table-size.
If only ipv4 template is to be used, then all the memory on the pfe could be
reserved only for the ipv4 family.
For eg: if 15 is allocated for IPv4 then total flows that can be created =
15*256*1024 = 3932160 and 1k IPv6 flows and 1K vpls flows (default).
Each unit in flow hash table size corresponds to memory size of 256k (256x1024).
In your case,
flow-table-size for ipv4 = 5, Total-flows that can be created = 5*256*1024 =
1310720
you are exporting @ 7k flows/sec to the flow-collector
If all of your traffic belongs to ipv4: Number of flows getting created =
7*1024*10 = 71680 flows/sec [ 10 = number of flow-records per 1 packet sent to
flow-collector ]
On Aug 25, 2014, at 3:56 PM, Scott Harvanek <scott.harva...@login.com> wrote:
Scott,
Thanks, my next question then with that is - how/why is the default of
ipv4 15 and ipv6 1? That would break that constraint of 15 total?
Scott H.
Login Inc.
On 8/25/14, 3:53 PM, Scott Granados wrote:
When ever you set the flow table size you initiate a reboot of the FPC. The
table size is a combined value of v4 and v6 so 15 total a subset of which is
IPV4 and the remainder is IPV6.
Thanks
Scott
On Aug 25, 2014, at 3:02 PM, Scott Harvanek <scott.harva...@login.com> wrote:
I'm wondering if anyone can clarify something for me from docs:
"
* Any change in the configured size of flow hash table sizes initiates
an automatic reboot of the FPC.
* The total number of units used for both IPv4 and IPv6 cannot exceed 15.
"
- Does the initial config entry of ipv4/ipv6-flow-table-size cause the
FPC to reboot or only if the configured value is changed?
-- I.e. the default for IPv4 size is 15, if that gets changed [ not
currently set in config ] does that cause a reboot?
Also, is 15 the maximum aggregate or is it per table:
-- Can you have 15 units assigned to IPv4 and IPv6 at the same time? or,
is 15 the maximum between the two?
Thanks!
-SH
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