show route output explained

[Eugene M. Zheganin]

Hello,

Since the documentation doesn't specify the exact output format, could 
anyone please explain it to me ?


0.0.0.0/0          via 192.168.57.60 on re0 [ospfv4 11:17:31] ! E2 
(150/10/10000) [192.168.100.254]
                    via 90.150.180.20 on ng0 [kernel1 11:12:08] (10)


I understand most of it, but not in detail.

1) What, for example, the exclamation mark means ? Bird mimics Juniper 
notation, but Juniper doesn't have exclamation mark in it, only +/-/*. 
(Since bird mimics the Juniper notation it would be cool if it would 
also print the mark meanings, like JunOS or Cisco IOS does)

2) What is the triplet (150/10/10000) ? I understand these are probably 
metric/cost/preference, but which is what ? Juniper here uses single metric.

3) When it comes to internal OSPF area, this field output changes to 
double-field one:


192.168.57.0/24    dev re0 [direct1 11:12:08] * (240)
                    dev re0 [ospfv4 11:17:31] I (150/10) [192.168.100.254]


again, which field in (150/10) is what ?


Thanks.