diff --git a/delfin/drivers/dell_emc/vnx/vnx_block/consts.py b/delfin/drivers/dell_emc/vnx/vnx_block/consts.py
index 6f14898db..c42d38cac 100644
--- a/delfin/drivers/dell_emc/vnx/vnx_block/consts.py
+++ b/delfin/drivers/dell_emc/vnx/vnx_block/consts.py
@@ -14,7 +14,7 @@
 from delfin import exception
 from delfin.common import constants
 
-SOCKET_TIMEOUT = 30
+SOCKET_TIMEOUT = 10
 CER_ERR = 'Unable to validate the identity of the server'
 CALLER_ERR = 'Caller not privileged'
 SECURITY_ERR = 'Security file not found'
@@ -24,8 +24,8 @@
 EXCEPTION_MAP = {CER_ERR: exception.SSLCertificateFailed,
                  CALLER_ERR: exception.InvalidUsernameOrPassword,
                  SECURITY_ERR: exception.InvalidUsernameOrPassword,
-                 TRYING_CONNECT_ERR: exception.ConnectTimeout,
-                 CONNECTION_ERR: exception.ConnectTimeout,
+                 TRYING_CONNECT_ERR: exception.InvalidIpOrPort,
+                 CONNECTION_ERR: exception.InvalidIpOrPort,
                  INVALID_ERR: exception.InvalidUsernameOrPassword}
 CER_STORE = '2'
 CER_REJECT = '3'