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-rw-r--r--interface-definitions/policy.xml.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/interface-definitions/policy.xml.in b/interface-definitions/policy.xml.in
index b5ea2058a..cce4186ff 100644
--- a/interface-definitions/policy.xml.in
+++ b/interface-definitions/policy.xml.in
@@ -242,7 +242,7 @@
<description>BGP extended community-list name</description>
</valueHelp>
<constraint>
- <regex>^[a-zA-Z0-9]+$</regex>
+ <regex>^[-_a-zA-Z0-9]+$</regex>
</constraint>
<constraintErrorMessage>Should be an alphanumeric name</constraintErrorMessage>
</properties>