Towards more consistent BGP/OSPF/ISIS timer settings

[jbemmel]

There is currently a wide variety in timer settings:

FRR OSPF timers are set here:

netlab/netsim/ansible/templates/ospf/frr.ospfv2.j2

Line 22 in 1cb846e

timers throttle spf 10 50 500

EOS has:

netlab/netsim/ansible/templates/ospf/eos.ospfv2.j2

Line 21 in 1cb846e

timers spf delay initial 100 200 500

and most platforms use their (more conservative) defaults. Similar for ISIS and BGP,
e.g. FRR has

netlab/netsim/ansible/templates/initial/frr.j2

Line 169 in 1cb846e

frr defaults {{ frr_defaults }}

which sets low bgp reconnect timers,

but SR Linux uses

netlab/netsim/ansible/templates/bgp/srlinux.macro.j2

Line 175 in 1cb846e

connect-retry: 10

and I couldn't find any specific EOS settings.

Perhaps it would be good to harmonize these settings, i.e. define an object model with parameters and use those?

[ipspace]

There is currently a wide variety in timer settings:

Considering that every platform also has different defaults, and that a different (sub)set of timers are configurable on different platforms, I would say this is not worth solving.

Engineers who want to have consistent timers across multiple vendors can always use custom config templates, and there are beautiful mechanisms to implement them in multi-vendor environment.