Place the first 7 ingredients in a 3 1/2-quart slow cooker in the order listed. Sprinkle parsley and the next 5 ingredients over the vegetables. Dissolve bouillon in boiling water and pour over spices. Cover and cook on low setting for 8 to 10 hours. Remove beef shank and bay leaf; recover. Remove meat from bones; cut into bite-size pieces. Return meat to soup; mix.