CREATE TABLE table_17403 ("Vendor and type" TEXT, "Models" TEXT, "NetFlow Version" TEXT, "Implementation" TEXT, "Comments" TEXT)

What are the comments when the vendor and type is alcatel-lucent routers?
SELECT "Comments" FROM table_17403 WHERE "Vendor and type" = 'Alcatel-Lucent routers'
SELECT "Comments" FROM "table_17403" WHERE "Vendor and type" = 'Alcatel-Lucent routers'