01
Step 1: Configure
02
 
03
a.      Copy the file 'poesched.slax' to '/var/db/scripts/event/'.
04
 
05
b.  Using a text editor, create following configuration and copy it to
06
the clipboard
07
    poe {
08
        apply-macro scheduler-admin {
09
            off 8; /* EDIT HERE */
10
            on 4; /* EDIT HERE */
11
        }
12
        apply-macro scheduler-finance {
13
            off 1; /* EDIT HERE */
14
            on 9; /* EDIT HERE */
15
        }
16
        interface ge-0/0/0 { /* EDIT HERE */
17
            apply-macro scheduler {
18
                group admin;
19
            }
20
        }
21
        interface ge-0/0/1 { /* EDIT HERE */
22
            apply-macro scheduler {
23
                group admin;
24
            }
25
        }
26
    }
27
 
28
NOTE: In the above mentioned configuration the time against 'on/off'
29
keywords need to be customized according to the need (It is in 24-hour
30
notation). The interface names should also be changed to valid interface
31
names (Look for the EDIT HERE keyword).
32
 
33
c.      Add the script to the [edit event-options event-script] hierarchy
34
level using the file statement. Only users in the superuser class can
35
configure the event scripts.
36
 
37
                [edit event-options event-script]
38
                user@host# set file poesched.slax
39
 
40
d.  On the device, enter configuration mode
41
                user@host% cli
42
                user@host> configure
43
                Entering configuration mode
44
 
45
                [edit]
46
                user@host#
47
e.  Load the configuration file:
48
        [edit]
49
                user@host# load merge terminal
50
f.  At the prompt, past the contents of the clipboard
51
        [edit]
52
        user@host# load merge terminal
53
        [Type ^D at a new line to end input]
54
        > Paste the contents of the clipboard here <
55
g.  Hit Enter
56
h.  Enter Ctrl+d
57
i.  Commit the configuration
58
                [edit]
59
            user@host# commit and-quit
60
 
61
Step 2: Run
62
This event script will get executed on the occurrence of the event
63
'poe-scheduler-start', which will be triggered once in every hour.
64
 
65
Note: An event is triggered every hour but not necessarily at the top
66
of the hour, it could trigger 15 minutes into every hour, 42 minutes into
67
every hour, etc.  Also, if the poe interface has a macro configured that
68
specifies that poe should be turned on/off during that hour then the
69
config will change.

001
/*
002
 * Author        : Patricio Giecco
003
 * Version       : 1.0
004
 * Last Modified :
005
 * JUNOS Release : 9.3 and above
006
 * Platform      : EX Series
007
 *
008
 * Description   : poesched.slax
009
 * This event script is executed on the occurrence of 'poe-scheduler-start'
010
 * event. According to the configuration mentioned in this file, under
011
 * 'event-definition', this event is triggered in every 1 hour and this
012
 * script get executed. This script disables/enables some interfaces for
013
 * poe, based on the configured schedule for a particular time.
014
 */
015
 
016
version 1.0;
017
 
018
ns junos = "http://xml.juniper.net/junos/*/junos";
019
ns xnm = "http://xml.juniper.net/xnm/1.1/xnm";
020
ns jcs = "http://xml.juniper.net/junos/commit-scripts/1.0";
021
 
022
import "../import/junos.xsl";
023
 
024
var $event-definition = {
025
    <event-options> {
026
        <generate-event> {
027
            <name> 'poe-scheduler-start';
028
            <time-interval> '3600';
029
        }
030
        <policy> {
031
            <name> 'poe-scheduler';
032
            <events> 'poe-scheduler-start';
033
            <then> {
034
                <event-script> {
035
                    <name> 'poesched.slax';
036
                }
037
            }
038
        }
039
    }
040
}
041
 
042
var $arguments = <argument> {
043
    <name> "time";
044
    <description> "execute the scheduled action at the specified time";
045
}
046
 
047
/*
048
 * This script is executed on the occurrence of event 'poe-scheduler-start'
049
 * which occurs in every one hour. On execution of this script POE on/off
050
 * on some ports based on a configured schedule. If the time was passed as
051
 * a parameter then use the passed value otherwise get the system time-date
052
 * and extract the time portion of it i.e. current time (only the hour).
053
 */
054
param $time = {
055
    var $uptime = jcs:invoke("get-system-uptime-information");
056
    var $date = $uptime//current-time/date-time;
057
     
058
    expr substring($date, 12, 2);
059
}
060
 
061
match / {
062
 
063
    /*
064
     * Get the poe configuration
065
     */
066
    var $poe-rpc = <get-configuration> {
067
        <configuration> {
068
            <poe>;
069
        }
070
    }
071
 
072
    var $poe = jcs:invoke($poe-rpc);
073
 
074
    /*
075
     * Open a connection with mgd
076
     */
077
    var $con = jcs:open();
078
 
079
    if (not($con)) {
080
        <xnm:error> {
081
            <message> "Not able to connect with local mgd";
082
        }
083
    }
084
 
085
    /*
086
     * Generate the xml formated config delta
087
     */
088
    var $xml := {
089
        <configuration> {
090
            <poe> {
091
                /*
092
                 * Go through all the groups that are scheduled at this time
093
                 */
094
                for-each ($poe//apply-macro[starts-with(name, "scheduler-") &&
095
                          data/value == number($time)]) {
096
                    var $splitName = jcs:regex("scheduler-(.+)", name);
097
                    var $group = $splitName[2];
098
                    var $action = data[value == number($time)]/name;
099
 
100
                    /*
101
                     * select all the interfaces belonging to the sceduled
102
                     * groups
103
                     */
104
                    for-each ($poe//interface[apply-macro/name == "scheduler" &&
105
                              apply-macro/data/name == "group" &&
106
                              apply-macro/data/value == $group]) {
107
                        if ($action == "on" && disable) {
108
                            <interface> {
109
                                <name> name;
110
                                <disable delete = "delete">;
111
                            }
112
                        } else if ($action == "off" && not(disable)) {
113
                            <interface> {
114
                                <name> name;
115
                                <disable>;
116
                            }
117
                        }
118
                    }
119
                }
120
            }
121
        }
122
    }
123
     
124
    /*
125
     * If some interface statements are present in the $xml/configuration/poe,
126
     * then commit the changes otherwise not required
127
     */
128
    if ($xml/configuration/poe/interface) {
129
        var $results = {
130
            call jcs:load-configuration($connection = $con,
131
                                        $configuration = $xml);
132
        }
133
    }
134
}