Re: [netmod] draft-ietf-netmod-syslog-model-23
Bob Harold <rharolde@umich.edu> Mon, 05 March 2018 19:06 UTC
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From: Bob Harold <rharolde@umich.edu>
Date: Mon, 05 Mar 2018 14:05:57 -0500
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To: "Clyde Wildes (cwildes)" <cwildes@cisco.com>
Cc: "netmod@ietf.org" <netmod@ietf.org>
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Subject: Re: [netmod] draft-ietf-netmod-syslog-model-23
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On Fri, Mar 2, 2018 at 5:13 PM, Clyde Wildes (cwildes) <cwildes@cisco.com> wrote: > Bob, > > > > Syslog message severity is set in RFC 5424 Table 2. The model in > draft-ietf-netmod-syslog-model-23 conforms to that specification. A lower > number means higher severity. > > > Thanks. Can we add "A lower number means higher severity" to make it clear? In Section "4.1 <https://tools.ietf.org/html/draft-ietf-netmod-syslog-model-23#section-4.1>. The ietf-syslog Module" on page 11, cna we change: From: typedef syslog-severity { type enumeration { enum "emergency" { value 0; description Change to: typedef syslog-severity { description "Note that a lower value is a higher severity. Comparisons of equal-or-higher security mean equal or lower numeric value" type enumeration { enum "emergency" { value 0; description -- Bob Harold > > The severity-filter specifies that “all messages of the specified severity > and greater match” and therefore will be selected. This conforms to the way > that many vendors that we evaluated perform syslog message severity match > selection. > > > > Juniper Example: > > https://www.juniper.net/documentation/en_US/junos12.3/topics > /task/configuration/syslog-single-chassis-facility- > severity-messages-specifying.html > > > > “Messages from the facility that are rated at that level or higher are > logged to the destination” > > > > Linux rsyslogd Example: > > http://www.rsyslog.com/doc/v8-stable/configuration/filters.html#selectors > > > > “The behavior of the original BSD syslogd is that all messages of the > specified priority and higher are logged according to the given action. > Rsyslogd behaves the same…” > > > > Changing the table to match higher severity to higher number means that we > would not conform the RFC 5424. > > > > Note: I do see a typo in the description for severity-filter (the word > “use” is missing): > > > > else compare message severity with the specified severity > > according to the default compare rule (all messages of the > > specified severity and greater match) or if the > > select-adv-compare feature is present, the advance-compare > > rule. > > > > should be: > > > > else compare message severity with the specified severity > > according to the default compare rule (all messages of the > > specified severity and greater match) or if the > > select-adv-compare feature is present, use the advance-compare > > rule. > > > > Thanks, > > > > Clyde > > > > *From: *netmod <netmod-bounces@ietf.org> on behalf of Bob Harold < > rharolde@umich.edu> > *Date: *Friday, March 2, 2018 at 12:33 PM > *To: *"netmod@ietf.org" <netmod@ietf.org> > *Subject: *[netmod] draft-ietf-netmod-syslog-model-23 > > > > Sorry for being late to the discussion - just joined this group. > > Can we have "higher severity" match "higher number" in the enumerated > values, to avoid confusion? > > In section 4.1. The ietf-syslog Module > on Page 11 > > typedef syslog-severity { > > -- should be in the order: > debug=0 > emergency=7 > > because "severity-filter" uses "equals-or-higher" which means "higher > severity" but should also mean "higher number" to avoid confusion. > > -- > Bob Harold >
- [netmod] draft-ietf-netmod-syslog-model-23 Bob Harold
- Re: [netmod] draft-ietf-netmod-syslog-model-23 Clyde Wildes (cwildes)
- Re: [netmod] draft-ietf-netmod-syslog-model-23 Bob Harold
- Re: [netmod] draft-ietf-netmod-syslog-model-23 Clyde Wildes (cwildes)