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--- guides:user:l3vpn:l3vpnmodify [2019/12/24 09:08] – ↷ Page moved from guides:howto:l3vpn:l3vpnmodify to guides:user:l3vpn:l3vpnmodify bdorlandt
+++ guides:user:l3vpn:l3vpnmodify [2024/07/03 12:31] (current) – external edit 127.0.0.1
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+{{indexmenu_n>1}}
+====== Modify L3 VPN ======
+On this  page we demonstrate how we can edit some parameters for an already deployed Service
+In this example, we continue  with our earlier example of [[guides:user:l3vpn:l3vpn|L3VPN]] and propose to alter its QoS parameters. So Here is the PE's complete configuration
+<code>
+! Cisco_IOS Template 'c7600' Rev=2017-10-23 20:28 Seq=1
+! This configuration is automatically generated at 2017-12-01 14:20:33
+!
+access-list 2 permit  172.16.5.22  0.0.0.0
+!
+class-map acgroup2
+    match access-group 2
+    exit
+!
+policy-map police
+    class acgroup2
+    police 10000 4000 6000 conform-action transmit exceed-action set-qos-transmit 4 violate-action drop
+    exit
+!
+ip vrf CustA
+rd  172.31.0.11:1
+route-target both 65001:1
+ip vrf CustB
+rd  172.31.0.11:9
+route-target both 65001:9
+!
+interface Ethernet1/2
+ip vrf forwarding CustA
+ip address  5.5.5.1  255.255.255.252
+service-policy input police
+no shut
+interface Ethernet1/3
+ip vrf forwarding CustB
+ip address  5.5.5.5  255.255.255.252
+service-policy input police
+no shut
+router bgp 65001
+!
+ address-family ipv4 vrf CustA
+ redistribute static
+ redistribute connected
+!
+ address-family ipv4 vrf CustB
+ redistribute static
+ redistribute connected
+!
+</code>
+Here we can see the QoS' Police parameters are:
+  police 10000 4000 6000 conform-action transmit exceed-action set-qos-transmit 4 violate-action drop
+We can alter these parameters by using Custom Attributes
+We create three custom attributes and place them under the node as shown in the snapshot below
+{{guides:howto:custom_attributes_01.png?400|}}
+Now if we view the Node in BUILD menu, we can see the three custom attributes are shown as below
+{{guides:howto:custom_attributes_02.png?400|}}
+We can freely alter these custom fields values to as needed.
+Lets alter them from 10000,4000 and 6000 to 12000,6000 and 8000 and then generate the config
+Now if we head over to Operate --> Tools --> View config, we can see the CLI is automatically updated. (Since the template for Police calls upon these variables)
+====== police_qos ======
+<code cisco>
+access-list 2 permit 172.16.5.22 0.0.0.0
+!
+class-map acgroup2
+ match access-group 2
+ exit
+!
+policy-map police
+ class acgroup2
+ police <avg_rate_bps> <normal_burst_rate_bps> <excess_burst_rate_bps> conform-action transmit exceed-action set-qos-transmit 4 violate-action drop
+ exit
+!
+</code>
+Now its matter of creating a specific job to push the config to the device.
+For e.g
+===== Job Name: =====
+Update QoS
+==== Commands: ====
+<code>{police_qos}</code>
+=== Scenario: ===
+(the defaults, nothing needs to be modified from the scenario available in the "Default Command Job")
+<code>
+[parameters]
+node = 'PE1'
+verbose = '-v'
+[scenario]
+Description <node> Command_job...
+task = Command_job
+end
+</code>